381366908532 has 24 divisors (see below), whose sum is σ = 988729022400. Its totient is φ = 127122302808.

The previous prime is 381366908519. The next prime is 381366908543. The reversal of 381366908532 is 235809663183.

It is a happy number.

381366908532 is a `hidden beast` number, since 3 + 8 + 13 + 6 + 6 + 90 + 8 + 532 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765587432 + ... + 1765587647.

It is an arithmetic number, because the mean of its divisors is an integer number (41197042600).

Almost surely, 2^381366908532 is an apocalyptic number.

It is an amenable number.

381366908532 is an abundant number, since it is smaller than the sum of its proper divisors (607362113868).

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

381366908532 is a wasteful number, since it uses less digits than its factorization.

381366908532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531175092 (or 3531175084 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 381366908532 in words is "three hundred eighty-one billion, three hundred sixty-six million, nine hundred eight thousand, five hundred thirty-two".