78780554445120 has 112 divisors (see below), whose sum is σ = 272867193160128. Its totient is φ = 19098316226560.

The previous prime is 78780554445107. The next prime is 78780554445169. The reversal of 78780554445120 is 2154445508787.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 3730129329 + ... + 3730150448.

It is an arithmetic number, because the mean of its divisors is an integer number (2436314224644).

Almost surely, 2^{78780554445120} is an apocalyptic number.

It is an amenable number.

78780554445120 is an abundant number, since it is smaller than the sum of its proper divisors (194086638715008).

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

78780554445120 is a wasteful number, since it uses less digits than its factorization.

78780554445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460279808 (or 7460279798 counting only the distinct ones).

The product of its (nonzero) digits is 50176000, while the sum is 60.

The spelling of 78780554445120 in words is "seventy-eight trillion, seven hundred eighty billion, five hundred fifty-four million, four hundred forty-five thousand, one hundred twenty".