381860190870 has 32 divisors (see below), whose sum is σ = 917165749248. Its totient is φ = 101751463008.

The previous prime is 381860190857. The next prime is 381860190871. The reversal of 381860190870 is 78091068183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381860190871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4830214 + ... + 4908633.

It is an arithmetic number, because the mean of its divisors is an integer number (28661429664).

Almost surely, 2^381860190870 is an apocalyptic number.

381860190870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381860190870 is an abundant number, since it is smaller than the sum of its proper divisors (535305558378).

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

381860190870 is a wasteful number, since it uses less digits than its factorization.

381860190870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740164.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 381860190870 in words is "three hundred eighty-one billion, eight hundred sixty million, one hundred ninety thousand, eight hundred seventy".