76955753281 has 9 divisors (see below), whose sum is σ = 84591083073. Its totient is φ = 69957001620.

The previous prime is 76955753233. The next prime is 76955753297. The reversal of 76955753281 is 18235755967.

It is a happy number.

The square root of 76955753281 is 277409.

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

It is not a de Polignac number, because 76955753281 - 2¹⁷ = 76955622209 is a prime.

It is a super-2 number, since 2×76955753281² (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 (76955753201) 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, 3038890 + ... + 3064108.

Almost surely, 2^76955753281 is an apocalyptic number.

76955753281 is the 277409-th square number.

76955753281 is the 138705-th centered octagonal number.

It is an amenable number.

76955753281 is a deficient number, since it is larger than the sum of its proper divisors (7635329792).

76955753281 is an frugal number, since it uses more digits than its factorization.

76955753281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50460 (or 25230 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 58.

The spelling of 76955753281 in words is "seventy-six billion, nine hundred fifty-five million, seven hundred fifty-three thousand, two hundred eighty-one".