77121767060120 has 32 divisors (see below), whose sum is σ = 173789709444720. Its totient is φ = 30801465302400.

The previous prime is 77121767060111. The next prime is 77121767060131. The reversal of 77121767060120 is 2106076712177.

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, 1476271106 + ... + 1476323345.

Almost surely, 2^{77121767060120} is an apocalyptic number.

It is an amenable number.

77121767060120 is an abundant number, since it is smaller than the sum of its proper divisors (96667942384600).

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

77121767060120 is a wasteful number, since it uses less digits than its factorization.

77121767060120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952595115 (or 2952595111 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 47.

The spelling of 77121767060120 in words is "seventy-seven trillion, one hundred twenty-one billion, seven hundred sixty-seven million, sixty thousand, one hundred twenty".