78412655958 has 64 divisors (see below), whose sum is σ = 204369661440. Its totient is φ = 19463772672.

The previous prime is 78412655899. The next prime is 78412655969. The reversal of 78412655958 is 85955621487.

It is a super-2 number, since 2×78412655958² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4214628 + ... + 4233191.

It is an arithmetic number, because the mean of its divisors is an integer number (3193275960).

Almost surely, 2^78412655958 is an apocalyptic number.

78412655958 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

78412655958 is an abundant number, since it is smaller than the sum of its proper divisors (125957005482).

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

78412655958 is a wasteful number, since it uses less digits than its factorization.

78412655958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447861.

The product of its digits is 24192000, while the sum is 60.

The spelling of 78412655958 in words is "seventy-eight billion, four hundred twelve million, six hundred fifty-five thousand, nine hundred fifty-eight".