49004481921 has 16 divisors (see below), whose sum is σ = 68796119040. Its totient is φ = 30942144720.

The previous prime is 49004481887. The next prime is 49004481923. The reversal of 49004481921 is 12918440094.

It is a happy number.

It is not a de Polignac number, because 49004481921 - 2¹¹ = 49004479873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49004481923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113016 + ... + 332838.

It is an arithmetic number, because the mean of its divisors is an integer number (4299757440).

Almost surely, 2^49004481921 is an apocalyptic number.

It is an amenable number.

49004481921 is a deficient number, since it is larger than the sum of its proper divisors (19791637119).

49004481921 is a wasteful number, since it uses less digits than its factorization.

49004481921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223756.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 49004481921 in words is "forty-nine billion, four million, four hundred eighty-one thousand, nine hundred twenty-one".