76247224641 has 81 divisors (see below), whose sum is σ = 133310604609. Its totient is φ = 43480376856.

The previous prime is 76247224609. The next prime is 76247224649. The reversal of 76247224641 is 14642274267.

The square root of 76247224641 is 276129.

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

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 76247224641 - 2⁵ = 76247224609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76247224649) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 156564900 + ... + 156565386.

Almost surely, 2^76247224641 is an apocalyptic number.

76247224641 is the 276129-th square number.

76247224641 is the 138065-th centered octagonal number.

It is an amenable number.

76247224641 is a deficient number, since it is larger than the sum of its proper divisors (57063379968).

76247224641 is an frugal number, since it uses more digits than its factorization.

76247224641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 497 counting only the distinct ones).

The product of its digits is 903168, while the sum is 45.

The spelling of 76247224641 in words is "seventy-six billion, two hundred forty-seven million, two hundred twenty-four thousand, six hundred forty-one".