49087397917 has 4 divisors (see below), whose sum is σ = 49111809376. Its totient is φ = 49062986460.

The previous prime is 49087397911. The next prime is 49087397927. The reversal of 49087397917 is 71979378094.

49087397917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49087397917 - 2³⁵ = 14727659549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49087397911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12202713 + ... + 12206734.

It is an arithmetic number, because the mean of its divisors is an integer number (12277952344).

Almost surely, 2^49087397917 is an apocalyptic number.

It is an amenable number.

49087397917 is a deficient number, since it is larger than the sum of its proper divisors (24411459).

49087397917 is a wasteful number, since it uses less digits than its factorization.

49087397917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411458.

The product of its (nonzero) digits is 24004512, while the sum is 64.

The spelling of 49087397917 in words is "forty-nine billion, eighty-seven million, three hundred ninety-seven thousand, nine hundred seventeen".