79612278142 has 16 divisors (see below), whose sum is σ = 120869804160. Its totient is φ = 39322443672.

The previous prime is 79612278133. The next prime is 79612278143. The reversal of 79612278142 is 24187221697.

It is a super-2 number, since 2×79612278142² (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 (79612278143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2125993 + ... + 2163115.

It is an arithmetic number, because the mean of its divisors is an integer number (7554362760).

Almost surely, 2^79612278142 is an apocalyptic number.

79612278142 is a deficient number, since it is larger than the sum of its proper divisors (41257526018).

79612278142 is a wasteful number, since it uses less digits than its factorization.

79612278142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50127.

The product of its digits is 677376, while the sum is 49.

The spelling of 79612278142 in words is "seventy-nine billion, six hundred twelve million, two hundred seventy-eight thousand, one hundred forty-two".