50778547040 has 96 divisors (see below), whose sum is σ = 129862758816. Its totient is φ = 18651709440.

The previous prime is 50778547021. The next prime is 50778547111. The reversal of 50778547040 is 4074587705.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338195 + ... + 464685.

It is an arithmetic number, because the mean of its divisors is an integer number (1352737071).

Almost surely, 2^50778547040 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 50778547040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64931379408).

50778547040 is an abundant number, since it is smaller than the sum of its proper divisors (79084211776).

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

50778547040 is a wasteful number, since it uses less digits than its factorization.

50778547040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126712 (or 126704 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 47.

The spelling of 50778547040 in words is "fifty billion, seven hundred seventy-eight million, five hundred forty-seven thousand, forty".