49032779697920 has 144 divisors (see below), whose sum is σ = 123705970446240. Its totient is φ = 18569477210112.

The previous prime is 49032779697919. The next prime is 49032779697953. The reversal of 49032779697920 is 2979697723094.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39196034 + ... + 40427646.

It is an arithmetic number, because the mean of its divisors is an integer number (859069239210).

Almost surely, 2^{49032779697920} is an apocalyptic number.

49032779697920 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 49032779697920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61852985223120).

49032779697920 is an abundant number, since it is smaller than the sum of its proper divisors (74673190748320).

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

49032779697920 is a wasteful number, since it uses less digits than its factorization.

49032779697920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233290 (or 1233276 counting only the distinct ones).

The product of its (nonzero) digits is 648121824, while the sum is 74.

The spelling of 49032779697920 in words is "forty-nine trillion, thirty-two billion, seven hundred seventy-nine million, six hundred ninety-seven thousand, nine hundred twenty".