381377766804 has 48 divisors (see below), whose sum is σ = 920640302400. Its totient is φ = 122732499456.

The previous prime is 381377766769. The next prime is 381377766821. The reversal of 381377766804 is 408667773183.

It is a congruent number.

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, 5259507 + ... + 5331525.

It is an arithmetic number, because the mean of its divisors is an integer number (19180006300).

Almost surely, 2^381377766804 is an apocalyptic number.

It is an amenable number.

381377766804 is an abundant number, since it is smaller than the sum of its proper divisors (539262535596).

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

381377766804 is a wasteful number, since it uses less digits than its factorization.

381377766804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87272 (or 87270 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 381377766804 in words is "three hundred eighty-one billion, three hundred seventy-seven million, seven hundred sixty-six thousand, eight hundred four".