2506426660831 has 2 divisors, whose sum is σ = 2506426660832. Its totient is φ = 2506426660830.

The previous prime is 2506426660823. The next prime is 2506426660841. The reversal of 2506426660831 is 1380666246052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2506426660831 - 2³ = 2506426660823 is a prime.

It is a super-2 number, since 2×2506426660831² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2506426660841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253213330415 + 1253213330416.

It is an arithmetic number, because the mean of its divisors is an integer number (1253213330416).

Almost surely, 2^{2506426660831} is an apocalyptic number.

2506426660831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506426660831 is an equidigital number, since it uses as much as digits as its factorization.

2506426660831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 2506426660831 in words is "two trillion, five hundred six billion, four hundred twenty-six million, six hundred sixty thousand, eight hundred thirty-one".