2051707741631 has 2 divisors, whose sum is σ = 2051707741632. Its totient is φ = 2051707741630.

The previous prime is 2051707741627. The next prime is 2051707741663. The reversal of 2051707741631 is 1361477071502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051707741631 - 2² = 2051707741627 is a prime.

It is a super-2 number, since 2×2051707741631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051707741931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025853870815 + 1025853870816.

It is an arithmetic number, because the mean of its divisors is an integer number (1025853870816).

Almost surely, 2^{2051707741631} is an apocalyptic number.

2051707741631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051707741631 is an equidigital number, since it uses as much as digits as its factorization.

2051707741631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 2051707741631 in words is "two trillion, fifty-one billion, seven hundred seven million, seven hundred forty-one thousand, six hundred thirty-one".