78472054871331 has 64 divisors (see below), whose sum is σ = 114531074565120. Its totient is φ = 47396761251840.

The previous prime is 78472054871323. The next prime is 78472054871363. The reversal of 78472054871331 is 13317845027487.

It is a happy number.

It is not a de Polignac number, because 78472054871331 - 2³ = 78472054871323 is a prime.

It is a super-2 number, since 2×78472054871331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78472054871311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41896451211 + ... + 41896453083.

It is an arithmetic number, because the mean of its divisors is an integer number (1789548040080).

Almost surely, 2^{78472054871331} is an apocalyptic number.

78472054871331 is a deficient number, since it is larger than the sum of its proper divisors (36059019693789).

78472054871331 is a wasteful number, since it uses less digits than its factorization.

78472054871331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 78472054871331 in words is "seventy-eight trillion, four hundred seventy-two billion, fifty-four million, eight hundred seventy-one thousand, three hundred thirty-one".