77732115580452 has 24 divisors (see below), whose sum is σ = 182530190730496. Its totient is φ = 25745668854048.

The previous prime is 77732115580451. The next prime is 77732115580463. The reversal of 77732115580452 is 25408551123777.

It is a super-2 number, since 2×77732115580452² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77732115580392 and 77732115580401.

It is not an unprimeable number, because it can be changed into a prime (77732115580451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20629540468 + ... + 20629544235.

Almost surely, 2^{77732115580452} is an apocalyptic number.

It is an amenable number.

77732115580452 is an abundant number, since it is smaller than the sum of its proper divisors (104798075150044).

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

77732115580452 is a wasteful number, since it uses less digits than its factorization.

77732115580452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41259084867 (or 41259084865 counting only the distinct ones).

The product of its (nonzero) digits is 16464000, while the sum is 57.

The spelling of 77732115580452 in words is "seventy-seven trillion, seven hundred thirty-two billion, one hundred fifteen million, five hundred eighty thousand, four hundred fifty-two".