78225087414138 has 32 divisors (see below), whose sum is σ = 188210736637440. Its totient is φ = 21173707871280.

The previous prime is 78225087414113. The next prime is 78225087414163. The reversal of 78225087414138 is 83141478052287.

It is an interprime number because it is at equal distance from previous prime (78225087414113) and next prime (78225087414163).

It is a super-2 number, since 2×78225087414138² (a number of 29 digits) contains 22 as substring.

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, 49013211868 + ... + 49013213463.

It is an arithmetic number, because the mean of its divisors is an integer number (5881585519920).

Almost surely, 2^{78225087414138} is an apocalyptic number.

78225087414138 is an abundant number, since it is smaller than the sum of its proper divisors (109985649223302).

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

78225087414138 is a wasteful number, since it uses less digits than its factorization.

78225087414138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98026425362.

The product of its (nonzero) digits is 24084480, while the sum is 60.

The spelling of 78225087414138 in words is "seventy-eight trillion, two hundred twenty-five billion, eighty-seven million, four hundred fourteen thousand, one hundred thirty-eight".