385280978415 has 8 divisors (see below), whose sum is σ = 616449565488. Its totient is φ = 205483188480.

The previous prime is 385280978413. The next prime is 385280978431. The reversal of 385280978415 is 514879082583.

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

It is not a de Polignac number, because 385280978415 - 2¹ = 385280978413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385280978413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12842699266 + ... + 12842699295.

It is an arithmetic number, because the mean of its divisors is an integer number (77056195686).

Almost surely, 2^385280978415 is an apocalyptic number.

385280978415 is a deficient number, since it is larger than the sum of its proper divisors (231168587073).

385280978415 is a wasteful number, since it uses less digits than its factorization.

385280978415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25685398569.

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 385280978415 in words is "three hundred eighty-five billion, two hundred eighty million, nine hundred seventy-eight thousand, four hundred fifteen".