2690390302531 has 2 divisors, whose sum is σ = 2690390302532. Its totient is φ = 2690390302530.

The previous prime is 2690390302423. The next prime is 2690390302619. The reversal of 2690390302531 is 1352030930962.

2690390302531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2690390302531 - 2²⁵ = 2690356748099 is a prime.

It is a super-2 number, since 2×2690390302531² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2690390302931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345195151265 + 1345195151266.

It is an arithmetic number, because the mean of its divisors is an integer number (1345195151266).

Almost surely, 2^{2690390302531} is an apocalyptic number.

2690390302531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690390302531 is an equidigital number, since it uses as much as digits as its factorization.

2690390302531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 2690390302531 in words is "two trillion, six hundred ninety billion, three hundred ninety million, three hundred two thousand, five hundred thirty-one".