381228359884 has 24 divisors (see below), whose sum is σ = 678121854368. Its totient is φ = 187479584640.

The previous prime is 381228359851. The next prime is 381228359923. The reversal of 381228359884 is 488953822183.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7523377 + ... + 7573879.

Almost surely, 2^381228359884 is an apocalyptic number.

It is an amenable number.

381228359884 is a deficient number, since it is larger than the sum of its proper divisors (296893494484).

381228359884 is a wasteful number, since it uses less digits than its factorization.

381228359884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81505 (or 81503 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 61.

The spelling of 381228359884 in words is "three hundred eighty-one billion, two hundred twenty-eight million, three hundred fifty-nine thousand, eight hundred eighty-four".