49999237901 has 4 divisors (see below), whose sum is σ = 50198438304. Its totient is φ = 49800037500.

The previous prime is 49999237843. The next prime is 49999237909. The reversal of 49999237901 is 10973299994.

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 a de Polignac number, because none of the positive numbers 2^k-49999237901 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 (49999237909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99599825 + ... + 99600326.

It is an arithmetic number, because the mean of its divisors is an integer number (12549609576).

Almost surely, 2^49999237901 is an apocalyptic number.

It is an amenable number.

49999237901 is a deficient number, since it is larger than the sum of its proper divisors (199200403).

49999237901 is a wasteful number, since it uses less digits than its factorization.

49999237901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199200402.

The product of its (nonzero) digits is 9920232, while the sum is 62.

The spelling of 49999237901 in words is "forty-nine billion, nine hundred ninety-nine million, two hundred thirty-seven thousand, nine hundred one".