50157428440 has 64 divisors (see below), whose sum is σ = 129346056000. Its totient is φ = 17147524608.

The previous prime is 50157428381. The next prime is 50157428443. The reversal of 50157428440 is 4482475105.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 50157428393 and 50157428402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50157428443) 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, 158919 + ... + 354358.

It is an arithmetic number, because the mean of its divisors is an integer number (2021032125).

Almost surely, 2^50157428440 is an apocalyptic number.

It is an amenable number.

50157428440 is an abundant number, since it is smaller than the sum of its proper divisors (79188627560).

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

50157428440 is a wasteful number, since it uses less digits than its factorization.

50157428440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513644 (or 513640 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 50157428440 in words is "fifty billion, one hundred fifty-seven million, four hundred twenty-eight thousand, four hundred forty".