76655889424 has 45 divisors (see below), whose sum is σ = 156792123423. Its totient is φ = 36300717216.

The previous prime is 76655889307. The next prime is 76655889449. The reversal of 76655889424 is 42498855667.

The square root of 76655889424 is 276868.

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

It is a super-2 number, since 2×76655889424² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21040147 + ... + 21043789.

Almost surely, 2^76655889424 is an apocalyptic number.

76655889424 is the 276868-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76655889424

76655889424 is an abundant number, since it is smaller than the sum of its proper divisors (80136233999).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76655889424 is an frugal number, since it uses more digits than its factorization.

76655889424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332 (or 3664 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 64.

Multiplying 76655889424 by its sum of digits (64), we get a square (4905976923136 = 2214944²).

The spelling of 76655889424 in words is "seventy-six billion, six hundred fifty-five million, eight hundred eighty-nine thousand, four hundred twenty-four".