77726722232 has 16 divisors (see below), whose sum is σ = 145757593800. Its totient is φ = 38858030560.

The previous prime is 77726722231. The next prime is 77726722253. The reversal of 77726722232 is 23222762777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77726722231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604007 + ... + 721302.

Almost surely, 2^77726722232 is an apocalyptic number.

It is an amenable number.

77726722232 is a deficient number, since it is larger than the sum of its proper divisors (68030871568).

77726722232 is a wasteful number, since it uses less digits than its factorization.

77726722232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332646 (or 1332642 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 47.

The spelling of 77726722232 in words is "seventy-seven billion, seven hundred twenty-six million, seven hundred twenty-two thousand, two hundred thirty-two".