2690812156 has 24 divisors (see below), whose sum is σ = 4987631376. Its totient is φ = 1265829120.

The previous prime is 2690812151. The next prime is 2690812171. The reversal of 2690812156 is 6512180962.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281650 + ... + 291046.

It is an arithmetic number, because the mean of its divisors is an integer number (207817974).

Almost surely, 2^2690812156 is an apocalyptic number.

It is an amenable number.

2690812156 is a deficient number, since it is larger than the sum of its proper divisors (2296819220).

2690812156 is a wasteful number, since it uses less digits than its factorization.

2690812156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629 (or 13627 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2690812156 is about 51873.0388159398. The cubic root of 2690812156 is about 1390.8953664014.

The spelling of 2690812156 in words is "two billion, six hundred ninety million, eight hundred twelve thousand, one hundred fifty-six".