3774441655920 has 640 divisors, whose sum is σ = 13733361008640. Its totient is φ = 849160765440.

The previous prime is 3774441655913. The next prime is 3774441655967. The reversal of 3774441655920 is 295561444773.

It is a super-2 number, since 2×3774441655920² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 255592377 + ... + 255607143.

It is an arithmetic number, because the mean of its divisors is an integer number (21458376576).

Almost surely, 2^{3774441655920} is an apocalyptic number.

3774441655920 is a gapful number since it is divisible by the number (30) 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 3774441655920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6866680504320).

3774441655920 is an abundant number, since it is smaller than the sum of its proper divisors (9958919352720).

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

3774441655920 is a wasteful number, since it uses less digits than its factorization.

3774441655920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14953 (or 14947 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 3774441655920 in words is "three trillion, seven hundred seventy-four billion, four hundred forty-one million, six hundred fifty-five thousand, nine hundred twenty".