49149039123 has 12 divisors (see below), whose sum is σ = 71039690280. Its totient is φ = 32744502816.

The previous prime is 49149039119. The next prime is 49149039169. The reversal of 49149039123 is 32193094194.

49149039123 is a `hidden beast` number, since 4 + 9 + 1 + 490 + 39 + 123 = 666.

It is not a de Polignac number, because 49149039123 - 2² = 49149039119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49149032123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1779138 + ... + 1806551.

It is an arithmetic number, because the mean of its divisors is an integer number (5919974190).

Almost surely, 2^49149039123 is an apocalyptic number.

49149039123 is a deficient number, since it is larger than the sum of its proper divisors (21890651157).

49149039123 is a wasteful number, since it uses less digits than its factorization.

49149039123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587218 (or 3587215 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 49149039123 in words is "forty-nine billion, one hundred forty-nine million, thirty-nine thousand, one hundred twenty-three".