49999999800 has 48 divisors (see below), whose sum is σ = 155000001240. Its totient is φ = 13333333120.

The previous prime is 49999999781. The next prime is 49999999811. The reversal of 49999999800 is 899999994.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41666067 + ... + 41667266.

Almost surely, 2^49999999800 is an apocalyptic number.

49999999800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49999999800 is an abundant number, since it is smaller than the sum of its proper divisors (105000001440).

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

49999999800 is a wasteful number, since it uses less digits than its factorization.

49999999800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83333352 (or 83333343 counting only the distinct ones).

The product of its (nonzero) digits is 153055008, while the sum is 75.

The spelling of 49999999800 in words is "forty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred".