49278644400 has 120 divisors (see below), whose sum is σ = 163299347280. Its totient is φ = 12687825920.

The previous prime is 49278644383. The next prime is 49278644417. The reversal of 49278644400 is 444687294.

49278644400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (49278644383) and next prime (49278644417).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 49278644400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673227 + ... + 742826.

It is an arithmetic number, because the mean of its divisors is an integer number (1360827894).

Almost surely, 2^49278644400 is an apocalyptic number.

49278644400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49278644400 is an abundant number, since it is smaller than the sum of its proper divisors (114020702880).

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

49278644400 is a wasteful number, since it uses less digits than its factorization.

49278644400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416103 (or 1416092 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 49278644400 in words is "forty-nine billion, two hundred seventy-eight million, six hundred forty-four thousand, four hundred".