78150744884556 has 36 divisors (see below), whose sum is σ = 209168170133832. Its totient is φ = 24517880747904.

The previous prime is 78150744884479. The next prime is 78150744884587. The reversal of 78150744884556 is 65548844705187.

78150744884556 is a `hidden beast` number, since 7 + 8 + 1 + 50 + 7 + 4 + 488 + 45 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78150744884556² (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 11 ways as a sum of consecutive naturals, for example, 63848647170 + ... + 63848648393.

It is an arithmetic number, because the mean of its divisors is an integer number (5810226948162).

Almost surely, 2^{78150744884556} is an apocalyptic number.

It is an amenable number.

78150744884556 is an abundant number, since it is smaller than the sum of its proper divisors (131017425249276).

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

78150744884556 is a wasteful number, since it uses less digits than its factorization.

78150744884556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127697295590 (or 127697295585 counting only the distinct ones).

The product of its (nonzero) digits is 1204224000, while the sum is 72.

The spelling of 78150744884556 in words is "seventy-eight trillion, one hundred fifty billion, seven hundred forty-four million, eight hundred eighty-four thousand, five hundred fifty-six".