49207215591 has 24 divisors (see below), whose sum is σ = 71520583680. Its totient is φ = 32600466000.

The previous prime is 49207215587. The next prime is 49207215599. The reversal of 49207215591 is 19551270294.

49207215591 is a `hidden beast` number, since 4 + 9 + 20 + 72 + 1 + 559 + 1 = 666.

It is not a de Polignac number, because 49207215591 - 2² = 49207215587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49207215599) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1772266 + ... + 1799816.

It is an arithmetic number, because the mean of its divisors is an integer number (2980024320).

Almost surely, 2^49207215591 is an apocalyptic number.

49207215591 is a deficient number, since it is larger than the sum of its proper divisors (22313368089).

49207215591 is a wasteful number, since it uses less digits than its factorization.

49207215591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28787 (or 28784 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 49207215591 in words is "forty-nine billion, two hundred seven million, two hundred fifteen thousand, five hundred ninety-one".