78107333381 has 16 divisors (see below), whose sum is σ = 97502832000. Its totient is φ = 60786444480.

The previous prime is 78107333321. The next prime is 78107333387. The reversal of 78107333381 is 18333370187.

It is a cyclic number.

It is not a de Polignac number, because 78107333381 - 2²⁶ = 78040224517 is a prime.

It is a super-2 number, since 2×78107333381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78107333387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575006 + ... + 697743.

It is an arithmetic number, because the mean of its divisors is an integer number (6093927000).

Almost surely, 2^78107333381 is an apocalyptic number.

It is an amenable number.

78107333381 is a deficient number, since it is larger than the sum of its proper divisors (19395498619).

78107333381 is a wasteful number, since it uses less digits than its factorization.

78107333381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273564.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 78107333381 in words is "seventy-eight billion, one hundred seven million, three hundred thirty-three thousand, three hundred eighty-one".