2536157772 has 72 divisors (see below), whose sum is σ = 6843432960. Its totient is φ = 789596640.

The previous prime is 2536157761. The next prime is 2536157807. The reversal of 2536157772 is 2777516352.

2536157772 is a `hidden beast` number, since 2 + 5 + 3 + 6 + 1 + 577 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22453 + ... + 74675.

It is an arithmetic number, because the mean of its divisors is an integer number (95047680).

Almost surely, 2^2536157772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2536157772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3421716480).

2536157772 is an abundant number, since it is smaller than the sum of its proper divisors (4307275188).

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

2536157772 is a wasteful number, since it uses less digits than its factorization.

2536157772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52323 (or 52318 counting only the distinct ones).

The product of its digits is 617400, while the sum is 45.

The square root of 2536157772 is about 50360.2797053392. The cubic root of 2536157772 is about 1363.7206674522.

The spelling of 2536157772 in words is "two billion, five hundred thirty-six million, one hundred fifty-seven thousand, seven hundred seventy-two".