381758284920 has 64 divisors (see below), whose sum is σ = 1145748395520. Its totient is φ = 101760116864.

The previous prime is 381758284903. The next prime is 381758284937. The reversal of 381758284920 is 29482857183.

It is an interprime number because it is at equal distance from previous prime (381758284903) and next prime (381758284937).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365724 + ... + 947243.

It is an arithmetic number, because the mean of its divisors is an integer number (17902318680).

Almost surely, 2^381758284920 is an apocalyptic number.

381758284920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381758284920 is an abundant number, since it is smaller than the sum of its proper divisors (763990110600).

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

381758284920 is a wasteful number, since it uses less digits than its factorization.

381758284920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315404 (or 1315400 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 381758284920 in words is "three hundred eighty-one billion, seven hundred fifty-eight million, two hundred eighty-four thousand, nine hundred twenty".