381939191700 has 72 divisors (see below), whose sum is σ = 1205538986400. Its totient is φ = 92591318400.

The previous prime is 381939191677. The next prime is 381939191729. The reversal of 381939191700 is 7191939183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57866275 + ... + 57872874.

Almost surely, 2^381939191700 is an apocalyptic number.

381939191700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381939191700 is an abundant number, since it is smaller than the sum of its proper divisors (823599794700).

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

381939191700 is a wasteful number, since it uses less digits than its factorization.

381939191700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115739177 (or 115739170 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 51.

The spelling of 381939191700 in words is "three hundred eighty-one billion, nine hundred thirty-nine million, one hundred ninety-one thousand, seven hundred".