49909664400 has 60 divisors (see below), whose sum is σ = 159877295472. Its totient is φ = 13309243520.

The previous prime is 49909664377. The next prime is 49909664423. The reversal of 49909664400 is 446690994.

It is an interprime number because it is at equal distance from previous prime (49909664377) and next prime (49909664423).

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20794494 + ... + 20796893.

Almost surely, 2^49909664400 is an apocalyptic number.

49909664400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49909664400 is an abundant number, since it is smaller than the sum of its proper divisors (109967631072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49909664400 is a wasteful number, since it uses less digits than its factorization.

49909664400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41591408 (or 41591397 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 49909664400 in words is "forty-nine billion, nine hundred nine million, six hundred sixty-four thousand, four hundred".