78264382192 has 80 divisors (see below), whose sum is σ = 154473720192. Its totient is φ = 38409396480.

The previous prime is 78264382177. The next prime is 78264382219. The reversal of 78264382192 is 29128346287.

It is a super-2 number, since 2×78264382192² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94636083 + ... + 94636909.

Almost surely, 2^78264382192 is an apocalyptic number.

It is an amenable number.

78264382192 is a deficient number, since it is larger than the sum of its proper divisors (76209338000).

78264382192 is a wasteful number, since it uses less digits than its factorization.

78264382192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1400 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The spelling of 78264382192 in words is "seventy-eight billion, two hundred sixty-four million, three hundred eighty-two thousand, one hundred ninety-two".