381298549392 has 80 divisors (see below), whose sum is σ = 1105094090880. Its totient is φ = 125865525888.

The previous prime is 381298549367. The next prime is 381298549451. The reversal of 381298549392 is 293945892183.

381298549392 is a `hidden beast` number, since 3 + 8 + 129 + 85 + 49 + 392 = 666.

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, 4240143 + ... + 4329134.

It is an arithmetic number, because the mean of its divisors is an integer number (13813676136).

Almost surely, 2^381298549392 is an apocalyptic number.

It is an amenable number.

381298549392 is an abundant number, since it is smaller than the sum of its proper divisors (723795541488).

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

381298549392 is a wasteful number, since it uses less digits than its factorization.

381298549392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569397 (or 8569385 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 381298549392 in words is "three hundred eighty-one billion, two hundred ninety-eight million, five hundred forty-nine thousand, three hundred ninety-two".