49319997680 has 40 divisors (see below), whose sum is σ = 114971622000. Its totient is φ = 19675934208.

The previous prime is 49319997659. The next prime is 49319997719. The reversal of 49319997680 is 8679991394.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783005 + ... + 843644.

It is an arithmetic number, because the mean of its divisors is an integer number (2874290550).

Almost surely, 2^49319997680 is an apocalyptic number.

49319997680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49319997680 is an abundant number, since it is smaller than the sum of its proper divisors (65651624320).

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

49319997680 is a wasteful number, since it uses less digits than its factorization.

49319997680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627041 (or 1627035 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 65.

The spelling of 49319997680 in words is "forty-nine billion, three hundred nineteen million, nine hundred ninety-seven thousand, six hundred eighty".