31264707127661 has 16 divisors (see below), whose sum is σ = 37328024524800. Its totient is φ = 25603335199728.

The previous prime is 31264707127627. The next prime is 31264707127663. The reversal of 31264707127661 is 16672170746213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31264707127661 - 2¹⁸ = 31264706865517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31264707127663) 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, 112894721 + ... + 113171318.

It is an arithmetic number, because the mean of its divisors is an integer number (2333001532800).

Almost surely, 2^{31264707127661} is an apocalyptic number.

It is an amenable number.

31264707127661 is a deficient number, since it is larger than the sum of its proper divisors (6063317397139).

31264707127661 is a wasteful number, since it uses less digits than its factorization.

31264707127661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226066928.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 31264707127661 in words is "thirty-one trillion, two hundred sixty-four billion, seven hundred seven million, one hundred twenty-seven thousand, six hundred sixty-one".