77951155480 has 64 divisors (see below), whose sum is σ = 191379607200. Its totient is φ = 28339215360.

The previous prime is 77951155417. The next prime is 77951155483. The reversal of 77951155480 is 8455115977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77951155483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099316 + ... + 2136124.

Almost surely, 2^77951155480 is an apocalyptic number.

It is an amenable number.

77951155480 is an abundant number, since it is smaller than the sum of its proper divisors (113428451720).

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

77951155480 is a wasteful number, since it uses less digits than its factorization.

77951155480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41644 (or 41640 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 52.

The spelling of 77951155480 in words is "seventy-seven billion, nine hundred fifty-one million, one hundred fifty-five thousand, four hundred eighty".