381388672615 has 8 divisors (see below), whose sum is σ = 457740059760. Its totient is φ = 305061836352.

The previous prime is 381388672601. The next prime is 381388672697. The reversal of 381388672615 is 516276883183.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 381388672615 - 2¹⁹ = 381388148327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381388672615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6103525 + ... + 6165694.

It is an arithmetic number, because the mean of its divisors is an integer number (57217507470).

Almost surely, 2^381388672615 is an apocalyptic number.

381388672615 is a deficient number, since it is larger than the sum of its proper divisors (76351387145).

381388672615 is a wasteful number, since it uses less digits than its factorization.

381388672615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12275441.

The product of its digits is 11612160, while the sum is 58.

The spelling of 381388672615 in words is "three hundred eighty-one billion, three hundred eighty-eight million, six hundred seventy-two thousand, six hundred fifteen".