2690812157 has 8 divisors (see below), whose sum is σ = 2959692672. Its totient is φ = 2446191660.

The previous prime is 2690812151. The next prime is 2690812171. The reversal of 2690812157 is 7512180962.

It is not a de Polignac number, because 2690812157 - 2⁴ = 2690812141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690812151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009493 + ... + 1012154.

It is an arithmetic number, because the mean of its divisors is an integer number (369961584).

Almost surely, 2^2690812157 is an apocalyptic number.

It is an amenable number.

2690812157 is a deficient number, since it is larger than the sum of its proper divisors (268880515).

2690812157 is an equidigital number, since it uses as much as digits as its factorization.

2690812157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021680 (or 2021658 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 2690812157 is about 51873.0388255787. The cubic root of 2690812157 is about 1390.8953665737.

The spelling of 2690812157 in words is "two billion, six hundred ninety million, eight hundred twelve thousand, one hundred fifty-seven".