381307477398 has 8 divisors (see below), whose sum is σ = 762614954808. Its totient is φ = 127102492464.

The previous prime is 381307477321. The next prime is 381307477427. The reversal of 381307477398 is 893774703183.

It is a sphenic number, since it is the product of 3 distinct primes.

381307477398 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31775623111 + ... + 31775623122.

It is an arithmetic number, because the mean of its divisors is an integer number (95326869351).

Almost surely, 2^381307477398 is an apocalyptic number.

381307477398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381307477398 is a wasteful number, since it uses less digits than its factorization.

381307477398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63551246238.

The product of its (nonzero) digits is 21337344, while the sum is 60.

It can be divided in two parts, 381307 and 477398, that added together give a triangular number (858705 = T₁₃₁₀).

The spelling of 381307477398 in words is "three hundred eighty-one billion, three hundred seven million, four hundred seventy-seven thousand, three hundred ninety-eight".