76611043369 has 9 divisors (see below), whose sum is σ = 89121222711. Its totient is φ = 65664947880.

The previous prime is 76611043357. The next prime is 76611043423. The reversal of 76611043369 is 96334011667.

The square root of 76611043369 is 276787.

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

It can be written as a sum of positive squares in only one way, i.e., 468159769 + 76142883600 = 21637^2 + 275940^2 .

It is not a de Polignac number, because 76611043369 - 2¹⁷ = 76610912297 is a prime.

It is a super-2 number, since 2×76611043369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76611043339) 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, 1917739 + ... + 1957279.

It is an arithmetic number, because the mean of its divisors is an integer number (9902358079).

Almost surely, 2^76611043369 is an apocalyptic number.

76611043369 is the 276787-th square number.

76611043369 is the 138394-th centered octagonal number.

It is an amenable number.

76611043369 is a deficient number, since it is larger than the sum of its proper divisors (12510179342).

76611043369 is an frugal number, since it uses more digits than its factorization.

76611043369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79096 (or 39548 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The spelling of 76611043369 in words is "seventy-six billion, six hundred eleven million, forty-three thousand, three hundred sixty-nine".