78955642080 has 192 divisors, whose sum is σ = 315822689280. Its totient is φ = 18046996992.

The previous prime is 78955642049. The next prime is 78955642081. The reversal of 78955642080 is 8024655987.

78955642080 is a `hidden beast` number, since 7 + 8 + 9 + 556 + 4 + 2 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78955642081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1275244 + ... + 1335723.

It is an arithmetic number, because the mean of its divisors is an integer number (1644909840).

Almost surely, 2^78955642080 is an apocalyptic number.

78955642080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78955642080 is an abundant number, since it is smaller than the sum of its proper divisors (236867047200).

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

78955642080 is a wasteful number, since it uses less digits than its factorization.

78955642080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610998 (or 2610984 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 78955642080 in words is "seventy-eight billion, nine hundred fifty-five million, six hundred forty-two thousand, eighty".