49299743921 has 4 divisors (see below), whose sum is σ = 51443211072. Its totient is φ = 47156276772.

The previous prime is 49299743873. The next prime is 49299743953. The reversal of 49299743921 is 12934799294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49299743921 - 2²² = 49295549617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49299745921) 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, 1071733541 + ... + 1071733586.

It is an arithmetic number, because the mean of its divisors is an integer number (12860802768).

Almost surely, 2^49299743921 is an apocalyptic number.

It is an amenable number.

49299743921 is a deficient number, since it is larger than the sum of its proper divisors (2143467151).

49299743921 is a wasteful number, since it uses less digits than its factorization.

49299743921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143467150.

The product of its digits is 8817984, while the sum is 59.

The spelling of 49299743921 in words is "forty-nine billion, two hundred ninety-nine million, seven hundred forty-three thousand, nine hundred twenty-one".