2536519491 has 36 divisors (see below), whose sum is σ = 4072624920. Its totient is φ = 1519953600.

The previous prime is 2536519477. The next prime is 2536519499. The reversal of 2536519491 is 1949156352.

It is not a de Polignac number, because 2536519491 - 2¹⁷ = 2536388419 is a prime.

It is a super-2 number, since 2×2536519491² = 12867862256445798162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2536519499) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 83836 + ... + 110006.

It is an arithmetic number, because the mean of its divisors is an integer number (113128470).

Almost surely, 2^2536519491 is an apocalyptic number.

2536519491 is a deficient number, since it is larger than the sum of its proper divisors (1536105429).

2536519491 is a wasteful number, since it uses less digits than its factorization.

2536519491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26288 (or 26274 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 2536519491 is about 50363.8708897559. The cubic root of 2536519491 is about 1363.7854978336.

The spelling of 2536519491 in words is "two billion, five hundred thirty-six million, five hundred nineteen thousand, four hundred ninety-one".