3745557455920 has 240 divisors, whose sum is σ = 10199582684928. Its totient is φ = 1275409712640.

The previous prime is 3745557455909. The next prime is 3745557455923. The reversal of 3745557455920 is 295547555473.

It is not an unprimeable number, because it can be changed into a prime (3745557455923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1264108359 + ... + 1264111321.

Almost surely, 2^{3745557455920} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3745557455920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5099791342464).

3745557455920 is an abundant number, since it is smaller than the sum of its proper divisors (6454025229008).

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

3745557455920 is a wasteful number, since it uses less digits than its factorization.

3745557455920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 5075 counting only the distinct ones).

The product of its (nonzero) digits is 132300000, while the sum is 61.

The spelling of 3745557455920 in words is "three trillion, seven hundred forty-five billion, five hundred fifty-seven million, four hundred fifty-five thousand, nine hundred twenty".