50351012878 has 4 divisors (see below), whose sum is σ = 75526519320. Its totient is φ = 25175506438.

The previous prime is 50351012869. The next prime is 50351012897. The reversal of 50351012878 is 87821015305.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 50351012878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12587753218 + ... + 12587753221.

It is an arithmetic number, because the mean of its divisors is an integer number (18881629830).

Almost surely, 2^50351012878 is an apocalyptic number.

50351012878 is a deficient number, since it is larger than the sum of its proper divisors (25175506442).

50351012878 is a wasteful number, since it uses less digits than its factorization.

50351012878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25175506441.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 50351012878 in words is "fifty billion, three hundred fifty-one million, twelve thousand, eight hundred seventy-eight".