78370251071 has 24 divisors (see below), whose sum is σ = 92287797120. Its totient is φ = 66545174808.

The previous prime is 78370250951. The next prime is 78370251077. The reversal of 78370251071 is 17015207387.

It is not a de Polignac number, because 78370251071 - 2¹⁸ = 78369988927 is a prime.

It is a super-2 number, since 2×78370251071² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78370251077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1776560 + ... + 1820138.

It is an arithmetic number, because the mean of its divisors is an integer number (3845324880).

Almost surely, 2^78370251071 is an apocalyptic number.

78370251071 is a deficient number, since it is larger than the sum of its proper divisors (13917546049).

78370251071 is an frugal number, since it uses more digits than its factorization.

78370251071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43721 (or 43693 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 78370251071 in words is "seventy-eight billion, three hundred seventy million, two hundred fifty-one thousand, seventy-one".