77073764772 has 24 divisors (see below), whose sum is σ = 179845306816. Its totient is φ = 25690323168.

The previous prime is 77073764759. The next prime is 77073764777. The reversal of 77073764772 is 27746737077.

It is a super-2 number, since 2×77073764772² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77073764777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282993 + ... + 483975.

Almost surely, 2^77073764772 is an apocalyptic number.

It is an amenable number.

77073764772 is an abundant number, since it is smaller than the sum of its proper divisors (102771542044).

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

77073764772 is a wasteful number, since it uses less digits than its factorization.

77073764772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232947 (or 232945 counting only the distinct ones).

The product of its (nonzero) digits is 16941456, while the sum is 57.

The spelling of 77073764772 in words is "seventy-seven billion, seventy-three million, seven hundred sixty-four thousand, seven hundred seventy-two".