50889698440 has 64 divisors (see below), whose sum is σ = 131071075200. Its totient is φ = 17419650048.

The previous prime is 50889698413. The next prime is 50889698473. The reversal of 50889698440 is 4489698805.

It is a super-2 number, since 2×50889698440² (a number of 22 digits) contains 22 as substring.

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, 26512 + ... + 320128.

It is an arithmetic number, because the mean of its divisors is an integer number (2047985550).

Almost surely, 2^50889698440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50889698440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65535537600).

50889698440 is an abundant number, since it is smaller than the sum of its proper divisors (80181376760).

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

50889698440 is a wasteful number, since it uses less digits than its factorization.

50889698440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294254 (or 294250 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 50889698440 in words is "fifty billion, eight hundred eighty-nine million, six hundred ninety-eight thousand, four hundred forty".