79427257031 has 8 divisors (see below), whose sum is σ = 84785212800. Its totient is φ = 74187058680.

The previous prime is 79427257001. The next prime is 79427257103. The reversal of 79427257031 is 13075272497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79427257031 - 2⁶ = 79427256967 is a prime.

It is a super-2 number, since 2×79427257031² (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 (79427257001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29437961 + ... + 29440658.

It is an arithmetic number, because the mean of its divisors is an integer number (10598151600).

Almost surely, 2^79427257031 is an apocalyptic number.

79427257031 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79427257031 is the 126038-th centered decagonal number.

79427257031 is a deficient number, since it is larger than the sum of its proper divisors (5357955769).

79427257031 is a wasteful number, since it uses less digits than its factorization.

79427257031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58878709.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 79427257031 in words is "seventy-nine billion, four hundred twenty-seven million, two hundred fifty-seven thousand, thirty-one".