381617142020 has 48 divisors (see below), whose sum is σ = 821708229888. Its totient is φ = 148803744000.

The previous prime is 381617142017. The next prime is 381617142031. The reversal of 381617142020 is 20241716183.

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, 572777 + ... + 1044656.

It is an arithmetic number, because the mean of its divisors is an integer number (17118921456).

Almost surely, 2^381617142020 is an apocalyptic number.

It is an amenable number.

381617142020 is an abundant number, since it is smaller than the sum of its proper divisors (440091087868).

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

381617142020 is a wasteful number, since it uses less digits than its factorization.

381617142020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617740 (or 1617738 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 381617142020 in words is "three hundred eighty-one billion, six hundred seventeen million, one hundred forty-two thousand, twenty".