49970203920 has 1620 divisors, whose sum is σ = 232296075180. Its totient is φ = 9580806144.

The previous prime is 49970203883. The next prime is 49970203951. The reversal of 49970203920 is 2930207994.

49970203920 is a `hidden beast` number, since 499 + 70 + 2 + 0 + 3 + 92 + 0 = 666.

It can be written as a sum of positive squares in 18 ways, for example, as 32555706624 + 17414497296 = 180432^2 + 131964^2 .

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 323 ways as a sum of consecutive naturals, for example, 1723110466 + ... + 1723110494.

It is an arithmetic number, because the mean of its divisors is an integer number (143392639).

Almost surely, 2^49970203920 is an apocalyptic number.

49970203920 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 49970203920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116148037590).

49970203920 is an abundant number, since it is smaller than the sum of its proper divisors (182325871260).

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

49970203920 is a wasteful number, since it uses less digits than its factorization.

49970203920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 49970203920 in words is "forty-nine billion, nine hundred seventy million, two hundred three thousand, nine hundred twenty".