50387281878 has 32 divisors (see below), whose sum is σ = 105498683136. Its totient is φ = 16013166048.

The previous prime is 50387281831. The next prime is 50387281943. The reversal of 50387281878 is 87818278305.

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, 552301 + ... + 637032.

It is an arithmetic number, because the mean of its divisors is an integer number (3296833848).

Almost surely, 2^50387281878 is an apocalyptic number.

50387281878 is an abundant number, since it is smaller than the sum of its proper divisors (55111401258).

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

50387281878 is a wasteful number, since it uses less digits than its factorization.

50387281878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189668.

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 50387281878 in words is "fifty billion, three hundred eighty-seven million, two hundred eighty-one thousand, eight hundred seventy-eight".