50583321978 has 32 divisors (see below), whose sum is σ = 119605887360. Its totient is φ = 13954019520.

The previous prime is 50583321973. The next prime is 50583321991. The reversal of 50583321978 is 87912338505.

It is a happy number.

50583321978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 50583321978.

It is not an unprimeable number, because it can be changed into a prime (50583321973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20763693 + ... + 20766128.

It is an arithmetic number, because the mean of its divisors is an integer number (3737683980).

Almost surely, 2^50583321978 is an apocalyptic number.

50583321978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

50583321978 is an abundant number, since it is smaller than the sum of its proper divisors (69022565382).

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

50583321978 is a wasteful number, since it uses less digits than its factorization.

50583321978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41529862.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 50583321978 in words is "fifty billion, five hundred eighty-three million, three hundred twenty-one thousand, nine hundred seventy-eight".