2640707051 has 2 divisors, whose sum is σ = 2640707052. Its totient is φ = 2640707050.

The previous prime is 2640707021. The next prime is 2640707093. The reversal of 2640707051 is 1507070462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2640707051 - 2¹⁴ = 2640690667 is a prime.

It is a super-2 number, since 2×2640707051² = 13946667458402233202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2640706999 and 2640707017.

It is not a weakly prime, because it can be changed into another prime (2640707021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320353525 + 1320353526.

It is an arithmetic number, because the mean of its divisors is an integer number (1320353526).

Almost surely, 2^2640707051 is an apocalyptic number.

2640707051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640707051 is an equidigital number, since it uses as much as digits as its factorization.

2640707051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 2640707051 is about 51387.8103347477. The cubic root of 2640707051 is about 1382.2080193741.

The spelling of 2640707051 in words is "two billion, six hundred forty million, seven hundred seven thousand, fifty-one".