50400378880 has 120 divisors (see below), whose sum is σ = 127327319280. Its totient is φ = 19098501120.

The previous prime is 50400378869. The next prime is 50400378943. The reversal of 50400378880 is 8887300405.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540290 + ... + 1572670.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060994).

Almost surely, 2^50400378880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50400378880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63663659640).

50400378880 is an abundant number, since it is smaller than the sum of its proper divisors (76926940400).

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

50400378880 is an equidigital number, since it uses as much as digits as its factorization.

50400378880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32433 (or 32407 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 50400378880 in words is "fifty billion, four hundred million, three hundred seventy-eight thousand, eight hundred eighty".