78389314043076 has 81 divisors (see below), whose sum is σ = 198977201951983. Its totient is φ = 26021241786000.

The previous prime is 78389314043003. The next prime is 78389314043083. The reversal of 78389314043076 is 67034041398387.

The square root of 78389314043076 is 8853774.

It is a perfect power (a square), and thus also a powerful number.

78389314043076 is a `hidden beast` number, since 7 + 8 + 3 + 8 + 9 + 314 + 0 + 4 + 307 + 6 = 666.

It is a super-2 number, since 2×78389314043076² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13333780705 + ... + 13333786583.

Almost surely, 2^{78389314043076} is an apocalyptic number.

78389314043076 is the 8853774-th square number.

It is an amenable number.

78389314043076 is an abundant number, since it is smaller than the sum of its proper divisors (120587887908907).

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

78389314043076 is an frugal number, since it uses more digits than its factorization.

78389314043076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270 (or 6135 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 63.

The spelling of 78389314043076 in words is "seventy-eight trillion, three hundred eighty-nine billion, three hundred fourteen million, forty-three thousand, seventy-six".