50997391873 has 8 divisors (see below), whose sum is σ = 52445216448. Its totient is φ = 49567552944.

The previous prime is 50997391871. The next prime is 50997391897. The reversal of 50997391873 is 37819379905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50997391873 - 2¹ = 50997391871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50997391871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4490661 + ... + 4502002.

It is an arithmetic number, because the mean of its divisors is an integer number (6555652056).

Almost surely, 2^50997391873 is an apocalyptic number.

50997391873 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50997391873 is a deficient number, since it is larger than the sum of its proper divisors (1447824575).

50997391873 is a wasteful number, since it uses less digits than its factorization.

50997391873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8992823.

The product of its (nonzero) digits is 12859560, while the sum is 61.

The spelling of 50997391873 in words is "fifty billion, nine hundred ninety-seven million, three hundred ninety-one thousand, eight hundred seventy-three".