78137058146 has 32 divisors (see below), whose sum is σ = 145287862272. Its totient is φ = 30748746240.

The previous prime is 78137058073. The next prime is 78137058179. The reversal of 78137058146 is 64185073187.

It is a super-2 number, since 2×78137058146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78137058094 and 78137058103.

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, 3993986 + ... + 4013501.

It is an arithmetic number, because the mean of its divisors is an integer number (4540245696).

Almost surely, 2^78137058146 is an apocalyptic number.

78137058146 is a deficient number, since it is larger than the sum of its proper divisors (67150804126).

78137058146 is a wasteful number, since it uses less digits than its factorization.

78137058146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007554.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 78137058146 in words is "seventy-eight billion, one hundred thirty-seven million, fifty-eight thousand, one hundred forty-six".