2536722861 has 16 divisors (see below), whose sum is σ = 3444236928. Its totient is φ = 1660377600.

The previous prime is 2536722833. The next prime is 2536722863. The reversal of 2536722861 is 1682276352.

It is not a de Polignac number, because 2536722861 - 2⁷ = 2536722733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2536722863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26625 + ... + 76041.

It is an arithmetic number, because the mean of its divisors is an integer number (215264808).

Almost surely, 2^2536722861 is an apocalyptic number.

It is an amenable number.

2536722861 is a deficient number, since it is larger than the sum of its proper divisors (907514067).

2536722861 is a wasteful number, since it uses less digits than its factorization.

2536722861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49732.

The product of its digits is 241920, while the sum is 42.

The square root of 2536722861 is about 50365.8898561318. The cubic root of 2536722861 is about 1363.8219448424.

The spelling of 2536722861 in words is "two billion, five hundred thirty-six million, seven hundred twenty-two thousand, eight hundred sixty-one".