49902561280 has 384 divisors, whose sum is σ = 143546981760. Its totient is φ = 16408903680.

The previous prime is 49902561259. The next prime is 49902561307. The reversal of 49902561280 is 8216520994.

It is a self number, because there is not a number n which added to its sum of digits gives 49902561280.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77608639 + ... + 77609281.

It is an arithmetic number, because the mean of its divisors is an integer number (373820265).

Almost surely, 2^49902561280 is an apocalyptic number.

49902561280 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 49902561280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71773490880).

49902561280 is an abundant number, since it is smaller than the sum of its proper divisors (93644420480).

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

49902561280 is a wasteful number, since it uses less digits than its factorization.

49902561280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 49902561280 in words is "forty-nine billion, nine hundred two million, five hundred sixty-one thousand, two hundred eighty".