1913490966816 has 384 divisors, whose sum is σ = 6574453966080. Its totient is φ = 533794406400.

The previous prime is 1913490966769. The next prime is 1913490966847. The reversal of 1913490966816 is 6186690943191.

1913490966816 is a `hidden beast` number, since 1 + 9 + 1 + 3 + 490 + 9 + 66 + 81 + 6 = 666.

It is a super-2 number, since 2×1913490966816² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46064136 + ... + 46105656.

It is an arithmetic number, because the mean of its divisors is an integer number (17120973870).

Almost surely, 2^{1913490966816} is an apocalyptic number.

1913490966816 is a gapful number since it is divisible by the number (16) 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 1913490966816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3287226983040).

1913490966816 is an abundant number, since it is smaller than the sum of its proper divisors (4660962999264).

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

1913490966816 is a wasteful number, since it uses less digits than its factorization.

1913490966816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41937 (or 41923 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 1913490966816 in words is "one trillion, nine hundred thirteen billion, four hundred ninety million, nine hundred sixty-six thousand, eight hundred sixteen".