49629954191 has 4 divisors (see below), whose sum is σ = 49634479872. Its totient is φ = 49625428512.

The previous prime is 49629954133. The next prime is 49629954193. The reversal of 49629954191 is 19145992694.

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 49629954191 - 2¹⁰ = 49629953167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49629954191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49629954193) 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, 2246351 + ... + 2268336.

It is an arithmetic number, because the mean of its divisors is an integer number (12408619968).

Almost surely, 2^49629954191 is an apocalyptic number.

49629954191 is a deficient number, since it is larger than the sum of its proper divisors (4525681).

49629954191 is a wasteful number, since it uses less digits than its factorization.

49629954191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525680.

The product of its digits is 6298560, while the sum is 59.

The spelling of 49629954191 in words is "forty-nine billion, six hundred twenty-nine million, nine hundred fifty-four thousand, one hundred ninety-one".