50278187790 has 192 divisors, whose sum is σ = 140310144000. Its totient is φ = 12454041600.

The previous prime is 50278187779. The next prime is 50278187833. The reversal of 50278187790 is 9778187205.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24159550 + ... + 24161630.

It is an arithmetic number, because the mean of its divisors is an integer number (730782000).

Almost surely, 2^50278187790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50278187790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70155072000).

50278187790 is an abundant number, since it is smaller than the sum of its proper divisors (90031956210).

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

50278187790 is a wasteful number, since it uses less digits than its factorization.

50278187790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2380 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The spelling of 50278187790 in words is "fifty billion, two hundred seventy-eight million, one hundred eighty-seven thousand, seven hundred ninety".