77025914028 has 36 divisors (see below), whose sum is σ = 222519307920. Its totient is φ = 22007403936.

The previous prime is 77025914003. The next prime is 77025914047. The reversal of 77025914028 is 82041952077.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 152828943 + ... + 152829446.

Almost surely, 2^77025914028 is an apocalyptic number.

It is an amenable number.

77025914028 is an abundant number, since it is smaller than the sum of its proper divisors (145493393892).

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

77025914028 is a wasteful number, since it uses less digits than its factorization.

77025914028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305658406 (or 305658401 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 77025914028 in words is "seventy-seven billion, twenty-five million, nine hundred fourteen thousand, twenty-eight".