2115577134831 has 16 divisors (see below), whose sum is σ = 2823853127040. Its totient is φ = 1408843644000.

The previous prime is 2115577134809. The next prime is 2115577134841. The reversal of 2115577134831 is 1384317755112.

It is not a de Polignac number, because 2115577134831 - 2¹³ = 2115577126639 is a prime.

It is a super-2 number, since 2×2115577134831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115577134841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12428565 + ... + 12597633.

It is an arithmetic number, because the mean of its divisors is an integer number (176490820440).

Almost surely, 2^{2115577134831} is an apocalyptic number.

2115577134831 is a deficient number, since it is larger than the sum of its proper divisors (708275992209).

2115577134831 is a wasteful number, since it uses less digits than its factorization.

2115577134831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173606.

The product of its digits is 705600, while the sum is 48.

The spelling of 2115577134831 in words is "two trillion, one hundred fifteen billion, five hundred seventy-seven million, one hundred thirty-four thousand, eight hundred thirty-one".