78180525404234 has 16 divisors (see below), whose sum is σ = 127943428016160. Its totient is φ = 35533363797360.

The previous prime is 78180525404207. The next prime is 78180525404243. The reversal of 78180525404234 is 43240452508187.

It is a happy number.

It is a super-2 number, since 2×78180525404234² (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 7 ways as a sum of consecutive naturals, for example, 161686064 + ... + 162168875.

It is an arithmetic number, because the mean of its divisors is an integer number (7996464251010).

Almost surely, 2^{78180525404234} is an apocalyptic number.

78180525404234 is a deficient number, since it is larger than the sum of its proper divisors (49762902611926).

78180525404234 is a wasteful number, since it uses less digits than its factorization.

78180525404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323865925.

The product of its (nonzero) digits is 8601600, while the sum is 53.

The spelling of 78180525404234 in words is "seventy-eight trillion, one hundred eighty billion, five hundred twenty-five million, four hundred four thousand, two hundred thirty-four".