1630254790944 has 768 divisors, whose sum is σ = 5391045918720. Its totient is φ = 475891200000.

The previous prime is 1630254790939. The next prime is 1630254791029. The reversal of 1630254790944 is 4490974520361.

1630254790944 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 2 + 547 + 9 + 0 + 94 + 4 = 666.

It is a super-2 number, since 2×1630254790944² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 5310276039 + ... + 5310276345.

It is an arithmetic number, because the mean of its divisors is an integer number (7019591040).

Almost surely, 2^{1630254790944} 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 1630254790944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695522959360).

1630254790944 is an abundant number, since it is smaller than the sum of its proper divisors (3760791127776).

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

1630254790944 is a wasteful number, since it uses less digits than its factorization.

1630254790944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 1630254790944 in words is "one trillion, six hundred thirty billion, two hundred fifty-four million, seven hundred ninety thousand, nine hundred forty-four".