381369491712 has 432 divisors, whose sum is σ = 1250170084800. Its totient is φ = 110749040640.

The previous prime is 381369491627. The next prime is 381369491809. The reversal of 381369491712 is 217194963183.

381369491712 is a `hidden beast` number, since 3 + 8 + 136 + 9 + 491 + 7 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102159798 + ... + 102163530.

Almost surely, 2^381369491712 is an apocalyptic number.

381369491712 is a gapful number since it is divisible by the number (32) 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 381369491712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625085042400).

381369491712 is an abundant number, since it is smaller than the sum of its proper divisors (868800593088).

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

381369491712 is a wasteful number, since it uses less digits than its factorization.

381369491712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934 (or 3917 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 381369491712 in words is "three hundred eighty-one billion, three hundred sixty-nine million, four hundred ninety-one thousand, seven hundred twelve".