78272084132 has 12 divisors (see below), whose sum is σ = 149428524336. Its totient is φ = 35578220040.

The previous prime is 78272084089. The next prime is 78272084147. The reversal of 78272084132 is 23148027287.

It is a super-2 number, since 2×78272084132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1778911003 = 78272084132 / (7 + 8 + 2 + 7 + 2 + 0 + 8 + 4 + 1 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889455458 + ... + 889455545.

It is an arithmetic number, because the mean of its divisors is an integer number (12452377028).

Almost surely, 2^78272084132 is an apocalyptic number.

It is an amenable number.

78272084132 is a deficient number, since it is larger than the sum of its proper divisors (71156440204).

78272084132 is a wasteful number, since it uses less digits than its factorization.

78272084132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778911018 (or 1778911016 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 78272084132 in words is "seventy-eight billion, two hundred seventy-two million, eighty-four thousand, one hundred thirty-two".