4513597491 has 16 divisors (see below), whose sum is σ = 6482268576. Its totient is φ = 2777081856.

The previous prime is 4513597457. The next prime is 4513597511. The reversal of 4513597491 is 1947953154.

It is not a de Polignac number, because 4513597491 - 2¹⁸ = 4513335347 is a prime.

It is a super-2 number, since 2×4513597491² = 40745124621522990162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4513597491.

It is not an unprimeable number, because it can be changed into a prime (4513597691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401341 + ... + 412433.

It is an arithmetic number, because the mean of its divisors is an integer number (405141786).

Almost surely, 2^4513597491 is an apocalyptic number.

4513597491 is a deficient number, since it is larger than the sum of its proper divisors (1968671085).

4513597491 is a wasteful number, since it uses less digits than its factorization.

4513597491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21542.

The product of its digits is 680400, while the sum is 48.

The square root of 4513597491 is about 67183.3125932326. The cubic root of 4513597491 is about 1652.6248385085.

The spelling of 4513597491 in words is "four billion, five hundred thirteen million, five hundred ninety-seven thousand, four hundred ninety-one".