76030360372521 has 9 divisors (see below), whose sum is σ = 109821669433879. Its totient is φ = 50686889475936.

The previous prime is 76030360372453. The next prime is 76030360372579. The reversal of 76030360372521 is 12527306303067.

The square root of 76030360372521 is 8719539.

It is a perfect power (a square), and thus also a powerful number.

76030360372521 is a `hidden beast` number, since 7 + 6 + 0 + 3 + 0 + 360 + 37 + 252 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65190041181225 + 10840319191296 = 8074035^2 + 3292464^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 76030360372521 - 2¹⁵ = 76030360339753 is a prime.

It is a super-2 number, since 2×76030360372521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76030360372621) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24705361 + ... + 27611873.

Almost surely, 2^{76030360372521} is an apocalyptic number.

76030360372521 is the 8719539-th square number.

76030360372521 is the 4359770-th centered octagonal number.

It is an amenable number.

76030360372521 is a deficient number, since it is larger than the sum of its proper divisors (33791309061358).

76030360372521 is an frugal number, since it uses more digits than its factorization.

76030360372521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813032 (or 2906516 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 45.

Adding to 76030360372521 its reverse (12527306303067), we get a palindrome (88557666675588).

The spelling of 76030360372521 in words is "seventy-six trillion, thirty billion, three hundred sixty million, three hundred seventy-two thousand, five hundred twenty-one".