49581515499 has 16 divisors (see below), whose sum is σ = 68472928800. Its totient is φ = 31875044096.

The previous prime is 49581515491. The next prime is 49581515509. The reversal of 49581515499 is 99451518594.

It is a cyclic number.

It is not a de Polignac number, because 49581515499 - 2³ = 49581515491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49581515491) 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, 281844 + ... + 422609.

It is an arithmetic number, because the mean of its divisors is an integer number (4279558050).

Almost surely, 2^49581515499 is an apocalyptic number.

49581515499 is a deficient number, since it is larger than the sum of its proper divisors (18891413301).

49581515499 is a wasteful number, since it uses less digits than its factorization.

49581515499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705294.

The product of its digits is 11664000, while the sum is 60.

The spelling of 49581515499 in words is "forty-nine billion, five hundred eighty-one million, five hundred fifteen thousand, four hundred ninety-nine".