2135647534931 has 2 divisors, whose sum is σ = 2135647534932. Its totient is φ = 2135647534930.

The previous prime is 2135647534913. The next prime is 2135647534997. The reversal of 2135647534931 is 1394357465312.

Together with previous prime (2135647534913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2135647534931 - 2²² = 2135643340627 is a prime.

It is a super-2 number, since 2×2135647534931² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2135647530931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067823767465 + 1067823767466.

It is an arithmetic number, because the mean of its divisors is an integer number (1067823767466).

Almost surely, 2^{2135647534931} is an apocalyptic number.

2135647534931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135647534931 is an equidigital number, since it uses as much as digits as its factorization.

2135647534931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 53.

The spelling of 2135647534931 in words is "two trillion, one hundred thirty-five billion, six hundred forty-seven million, five hundred thirty-four thousand, nine hundred thirty-one".