126815032831 has 8 divisors (see below), whose sum is σ = 127286147520. Its totient is φ = 126344014368.

The previous prime is 126815032823. The next prime is 126815032849. The reversal of 126815032831 is 138230518621.

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 126815032831 - 2³ = 126815032823 is a prime.

It is a super-2 number, since 2×126815032831² (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 (126815033831) 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, 3647130 + ... + 3681736.

It is an arithmetic number, because the mean of its divisors is an integer number (15910768440).

Almost surely, 2^126815032831 is an apocalyptic number.

126815032831 is a deficient number, since it is larger than the sum of its proper divisors (471114689).

126815032831 is a wasteful number, since it uses less digits than its factorization.

126815032831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48113.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 126815032831 in words is "one hundred twenty-six billion, eight hundred fifteen million, thirty-two thousand, eight hundred thirty-one".