3721382919400 has 48 divisors (see below), whose sum is σ = 8655887243340. Its totient is φ = 1487921433600.

The previous prime is 3721382919377. The next prime is 3721382919407. The reversal of 3721382919400 is 49192831273.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 384615790276 + 3336767129124 = 620174^2 + 1826682^2 .

It is not an unprimeable number, because it can be changed into a prime (3721382919407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3475761 + ... + 4418560.

Almost surely, 2^{3721382919400} is an apocalyptic number.

It is an amenable number.

3721382919400 is an abundant number, since it is smaller than the sum of its proper divisors (4934504323940).

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

3721382919400 is a wasteful number, since it uses less digits than its factorization.

3721382919400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896694 (or 7896685 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 3721382919400 in words is "three trillion, seven hundred twenty-one billion, three hundred eighty-two million, nine hundred nineteen thousand, four hundred".