49638957272520 has 256 divisors, whose sum is σ = 185670463334400. Its totient is φ = 10314151311360.

The previous prime is 49638957272503. The next prime is 49638957272521. The reversal of 49638957272520 is 2527275983694.

It is not an unprimeable number, because it can be changed into a prime (49638957272521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246875467 + ... + 247076453.

It is an arithmetic number, because the mean of its divisors is an integer number (725275247400).

Almost surely, 2^{49638957272520} is an apocalyptic number.

49638957272520 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 49638957272520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92835231667200).

49638957272520 is an abundant number, since it is smaller than the sum of its proper divisors (136031506061880).

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

49638957272520 is a wasteful number, since it uses less digits than its factorization.

49638957272520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227748 (or 227744 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 69.

The spelling of 49638957272520 in words is "forty-nine trillion, six hundred thirty-eight billion, nine hundred fifty-seven million, two hundred seventy-two thousand, five hundred twenty".