49275191691 has 24 divisors (see below), whose sum is σ = 77735863296. Its totient is φ = 29829096240.

The previous prime is 49275191687. The next prime is 49275191761. The reversal of 49275191691 is 19619157294.

It is a happy number.

49275191691 is a `hidden beast` number, since 4 + 9 + 27 + 519 + 16 + 91 = 666.

49275191691 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 49275191691 - 2² = 49275191687 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (49275191681) 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, 202935 + ... + 373808.

It is an arithmetic number, because the mean of its divisors is an integer number (3238994304).

Almost surely, 2^49275191691 is an apocalyptic number.

49275191691 is a deficient number, since it is larger than the sum of its proper divisors (28460671605).

49275191691 is a wasteful number, since it uses less digits than its factorization.

49275191691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577623 (or 577620 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The spelling of 49275191691 in words is "forty-nine billion, two hundred seventy-five million, one hundred ninety-one thousand, six hundred ninety-one".