2051537344631 has 2 divisors, whose sum is σ = 2051537344632. Its totient is φ = 2051537344630.

The previous prime is 2051537344607. The next prime is 2051537344667. The reversal of 2051537344631 is 1364437351502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2051537344631 - 2²² = 2051533150327 is a prime.

It is a super-2 number, since 2×2051537344631² (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 (2051537344601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025768672315 + 1025768672316.

It is an arithmetic number, because the mean of its divisors is an integer number (1025768672316).

Almost surely, 2^{2051537344631} is an apocalyptic number.

2051537344631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051537344631 is an equidigital number, since it uses as much as digits as its factorization.

2051537344631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 2051537344631 in words is "two trillion, fifty-one billion, five hundred thirty-seven million, three hundred forty-four thousand, six hundred thirty-one".