49533145920 has 560 divisors, whose sum is σ = 193579943040. Its totient is φ = 11966828544.

The previous prime is 49533145867. The next prime is 49533145967. The reversal of 49533145920 is 2954133594.

49533145920 is a `hidden beast` number, since 4 + 9 + 53 + 3 + 1 + 4 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11324854 + ... + 11329226.

Almost surely, 2^49533145920 is an apocalyptic number.

49533145920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49533145920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96789971520).

49533145920 is an abundant number, since it is smaller than the sum of its proper divisors (144046797120).

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

49533145920 is a wasteful number, since it uses less digits than its factorization.

49533145920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444 (or 4425 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 49533145920 in words is "forty-nine billion, five hundred thirty-three million, one hundred forty-five thousand, nine hundred twenty".