385220815417 has 4 divisors (see below), whose sum is σ = 391749981840. Its totient is φ = 378691648996.

The previous prime is 385220815411. The next prime is 385220815423. The reversal of 385220815417 is 714518022583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (385220815411) and next prime (385220815423).

It is a cyclic number.

It is not a de Polignac number, because 385220815417 - 2⁷ = 385220815289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385220815411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264583123 + ... + 3264583240.

It is an arithmetic number, because the mean of its divisors is an integer number (97937495460).

Almost surely, 2^385220815417 is an apocalyptic number.

It is an amenable number.

385220815417 is a deficient number, since it is larger than the sum of its proper divisors (6529166423).

385220815417 is an equidigital number, since it uses as much as digits as its factorization.

385220815417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529166422.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 385220815417 in words is "three hundred eighty-five billion, two hundred twenty million, eight hundred fifteen thousand, four hundred seventeen".