77153006172 has 48 divisors (see below), whose sum is σ = 196411606272. Its totient is φ = 23377063680.

The previous prime is 77153006137. The next prime is 77153006233. The reversal of 77153006172 is 27160035177.

It is a super-2 number, since 2×77153006172² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77153006172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367188 + ... + 1422500.

It is an arithmetic number, because the mean of its divisors is an integer number (4091908464).

Almost surely, 2^77153006172 is an apocalyptic number.

It is an amenable number.

77153006172 is an abundant number, since it is smaller than the sum of its proper divisors (119258600100).

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

77153006172 is a wasteful number, since it uses less digits than its factorization.

77153006172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65898 (or 65896 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 77153006172 in words is "seventy-seven billion, one hundred fifty-three million, six thousand, one hundred seventy-two".