381287546155 has 16 divisors (see below), whose sum is σ = 470148084000. Its totient is φ = 296636332032.

The previous prime is 381287546141. The next prime is 381287546173. The reversal of 381287546155 is 551645782183.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 381287546155 - 2⁷ = 381287546027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381287546096 and 381287546105.

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, 151030 + ... + 886219.

It is an arithmetic number, because the mean of its divisors is an integer number (29384255250).

Almost surely, 2^381287546155 is an apocalyptic number.

381287546155 is a deficient number, since it is larger than the sum of its proper divisors (88860537845).

381287546155 is a wasteful number, since it uses less digits than its factorization.

381287546155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039278.

The product of its digits is 8064000, while the sum is 55.

The spelling of 381287546155 in words is "three hundred eighty-one billion, two hundred eighty-seven million, five hundred forty-six thousand, one hundred fifty-five".