49330721191 has 4 divisors (see below), whose sum is σ = 49333806432. Its totient is φ = 49327635952.

The previous prime is 49330721183. The next prime is 49330721213. The reversal of 49330721191 is 19112703394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19112703394 = 2 ⋅9556351697.

It is a cyclic number.

It is not a de Polignac number, because 49330721191 - 2³ = 49330721183 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 (49330721101) 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, 1518511 + ... + 1550656.

It is an arithmetic number, because the mean of its divisors is an integer number (12333451608).

Almost surely, 2^49330721191 is an apocalyptic number.

49330721191 is a deficient number, since it is larger than the sum of its proper divisors (3085241).

49330721191 is a wasteful number, since it uses less digits than its factorization.

49330721191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085240.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 49330721191 in words is "forty-nine billion, three hundred thirty million, seven hundred twenty-one thousand, one hundred ninety-one".