381278614863 has 16 divisors (see below), whose sum is σ = 530503128576. Its totient is φ = 243121111200.

The previous prime is 381278614841. The next prime is 381278614879. The reversal of 381278614863 is 368416872183.

It is not a de Polignac number, because 381278614863 - 2²⁶ = 381211505999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381278614883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236313 + ... + 1513613.

It is an arithmetic number, because the mean of its divisors is an integer number (33156445536).

Almost surely, 2^381278614863 is an apocalyptic number.

381278614863 is a deficient number, since it is larger than the sum of its proper divisors (149224513713).

381278614863 is a wasteful number, since it uses less digits than its factorization.

381278614863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297254.

The product of its digits is 9289728, while the sum is 57.

The spelling of 381278614863 in words is "three hundred eighty-one billion, two hundred seventy-eight million, six hundred fourteen thousand, eight hundred sixty-three".