49077491191 has 4 divisors (see below), whose sum is σ = 49553971792. Its totient is φ = 48601010592.

The previous prime is 49077491179. The next prime is 49077491201. The reversal of 49077491191 is 19119477094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49077491191 - 2²⁹ = 48540620279 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 (49077491101) 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, 238240146 + ... + 238240351.

It is an arithmetic number, because the mean of its divisors is an integer number (12388492948).

Almost surely, 2^49077491191 is an apocalyptic number.

49077491191 is a deficient number, since it is larger than the sum of its proper divisors (476480601).

49077491191 is a wasteful number, since it uses less digits than its factorization.

49077491191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476480600.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 49077491191 in words is "forty-nine billion, seventy-seven million, four hundred ninety-one thousand, one hundred ninety-one".