49540670991 has 96 divisors (see below), whose sum is σ = 88772935680. Its totient is φ = 26001518400.

The previous prime is 49540670957. The next prime is 49540671007. The reversal of 49540670991 is 19907604594.

It is a happy number.

49540670991 is a `hidden beast` number, since 4 + 9 + 540 + 6 + 7 + 0 + 9 + 91 = 666.

49540670991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49540670991 - 2¹³ = 49540662799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49540670191) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5880180 + ... + 5888598.

It is an arithmetic number, because the mean of its divisors is an integer number (924718080).

Almost surely, 2^49540670991 is an apocalyptic number.

49540670991 is a deficient number, since it is larger than the sum of its proper divisors (39232264689).

49540670991 is a wasteful number, since it uses less digits than its factorization.

49540670991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617 (or 8614 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 49540670991 in words is "forty-nine billion, five hundred forty million, six hundred seventy thousand, nine hundred ninety-one".