77136302452 has 24 divisors (see below), whose sum is σ = 155922580800. Its totient is φ = 32999487360.

The previous prime is 77136302437. The next prime is 77136302479. The reversal of 77136302452 is 25420363177.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51560952 + ... + 51562447.

It is an arithmetic number, because the mean of its divisors is an integer number (6496774200).

Almost surely, 2^77136302452 is an apocalyptic number.

It is an amenable number.

77136302452 is an abundant number, since it is smaller than the sum of its proper divisors (78786278348).

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

77136302452 is a wasteful number, since it uses less digits than its factorization.

77136302452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103123431 (or 103123429 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 77136302452 in words is "seventy-seven billion, one hundred thirty-six million, three hundred two thousand, four hundred fifty-two".