49190977923 has 4 divisors (see below), whose sum is σ = 65587970568. Its totient is φ = 32793985280.

The previous prime is 49190977907. The next prime is 49190977937. The reversal of 49190977923 is 32977909194.

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 49190977923 - 2⁴ = 49190977907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49190970923) 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, 8198496318 + ... + 8198496323.

It is an arithmetic number, because the mean of its divisors is an integer number (16396992642).

Almost surely, 2^49190977923 is an apocalyptic number.

49190977923 is a deficient number, since it is larger than the sum of its proper divisors (16396992645).

49190977923 is a wasteful number, since it uses less digits than its factorization.

49190977923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16396992644.

The product of its (nonzero) digits is 7715736, while the sum is 60.

The spelling of 49190977923 in words is "forty-nine billion, one hundred ninety million, nine hundred seventy-seven thousand, nine hundred twenty-three".