78180525381022 has 12 divisors (see below), whose sum is σ = 123767784641736. Its totient is φ = 37032880443300.

The previous prime is 78180525381019. The next prime is 78180525381061. The reversal of 78180525381022 is 22018352508187.

78180525381022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78180525381022² (a number of 29 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 5 ways as a sum of consecutive naturals, for example, 54141637354 + ... + 54141638797.

It is an arithmetic number, because the mean of its divisors is an integer number (10313982053478).

Almost surely, 2^{78180525381022} is an apocalyptic number.

78180525381022 is a deficient number, since it is larger than the sum of its proper divisors (45587259260714).

78180525381022 is a wasteful number, since it uses less digits than its factorization.

78180525381022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108283276191 (or 108283276172 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 78180525381022 in words is "seventy-eight trillion, one hundred eighty billion, five hundred twenty-five million, three hundred eighty-one thousand, twenty-two".