381208421580 has 96 divisors (see below), whose sum is σ = 1249619857920. Its totient is φ = 85008145920.

The previous prime is 381208421563. The next prime is 381208421639. The reversal of 381208421580 is 85124802183.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11051550 + ... + 11085989.

It is an arithmetic number, because the mean of its divisors is an integer number (13016873520).

Almost surely, 2^381208421580 is an apocalyptic number.

381208421580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381208421580 is an abundant number, since it is smaller than the sum of its proper divisors (868411436340).

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

381208421580 is a wasteful number, since it uses less digits than its factorization.

381208421580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137599 (or 22137597 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 381208421580 in words is "three hundred eighty-one billion, two hundred eight million, four hundred twenty-one thousand, five hundred eighty".