381400919604 has 72 divisors (see below), whose sum is σ = 1044548144640. Its totient is φ = 116872503552.

The previous prime is 381400919597. The next prime is 381400919611. The reversal of 381400919604 is 406919004183.

381400919604 is a `hidden beast` number, since 38 + 1 + 4 + 0 + 0 + 9 + 1 + 9 + 604 = 666.

It is an interprime number because it is at equal distance from previous prime (381400919597) and next prime (381400919611).

It is a super-2 number, since 2×381400919604² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381400919604.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7220244 + ... + 7272875.

It is an arithmetic number, because the mean of its divisors is an integer number (14507613120).

Almost surely, 2^381400919604 is an apocalyptic number.

381400919604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

381400919604 is an abundant number, since it is smaller than the sum of its proper divisors (663147225036).

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

381400919604 is a wasteful number, since it uses less digits than its factorization.

381400919604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493189 (or 14493184 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 381400919604 in words is "three hundred eighty-one billion, four hundred million, nine hundred nineteen thousand, six hundred four".