2156415762 has 32 divisors (see below), whose sum is σ = 4569426432. Its totient is φ = 676093184.

The previous prime is 2156415731. The next prime is 2156415791. The reversal of 2156415762 is 2675146512.

It is a self number, because there is not a number n which added to its sum of digits gives 2156415762.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180148 + ... + 191744.

It is an arithmetic number, because the mean of its divisors is an integer number (142794576).

Almost surely, 2^2156415762 is an apocalyptic number.

2156415762 is an abundant number, since it is smaller than the sum of its proper divisors (2413010670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156415762 is a wasteful number, since it uses less digits than its factorization.

2156415762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442.

The product of its digits is 100800, while the sum is 39.

The square root of 2156415762 is about 46437.2238834321. The cubic root of 2156415762 is about 1291.9454175518.

The spelling of 2156415762 in words is "two billion, one hundred fifty-six million, four hundred fifteen thousand, seven hundred sixty-two".