8131842737251 has 4 divisors (see below), whose sum is σ = 8131900096312. Its totient is φ = 8131785378192.

The previous prime is 8131842737189. The next prime is 8131842737261. The reversal of 8131842737251 is 1527372481318.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8131842737251 - 2²⁷ = 8131708519523 is a prime.

It is a super-2 number, since 2×8131842737251² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8131842737261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28466346 + ... + 28750591.

It is an arithmetic number, because the mean of its divisors is an integer number (2032975024078).

Almost surely, 2^{8131842737251} is an apocalyptic number.

8131842737251 is a deficient number, since it is larger than the sum of its proper divisors (57359061).

8131842737251 is a wasteful number, since it uses less digits than its factorization.

8131842737251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57359060.

The product of its digits is 2257920, while the sum is 52.

The spelling of 8131842737251 in words is "eight trillion, one hundred thirty-one billion, eight hundred forty-two million, seven hundred thirty-seven thousand, two hundred fifty-one".