49939899009 has 192 divisors, whose sum is σ = 93027760128. Its totient is φ = 23128934400.

The previous prime is 49939898951. The next prime is 49939899013. The reversal of 49939899009 is 90099893994.

It is not a de Polignac number, because 49939899009 - 2²⁵ = 49906344577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49939899019) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 159552237 + ... + 159552549.

It is an arithmetic number, because the mean of its divisors is an integer number (484519584).

Almost surely, 2^49939899009 is an apocalyptic number.

It is an amenable number.

49939899009 is a deficient number, since it is larger than the sum of its proper divisors (43087861119).

49939899009 is a wasteful number, since it uses less digits than its factorization.

49939899009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 51018336, while the sum is 69.

The spelling of 49939899009 in words is "forty-nine billion, nine hundred thirty-nine million, eight hundred ninety-nine thousand, nine".