385437315807 has 8 divisors (see below), whose sum is σ = 571018245680. Its totient is φ = 256958210520.

The previous prime is 385437315803. The next prime is 385437315817. The reversal of 385437315807 is 708513734583.

It is a happy number.

385437315807 is a `hidden beast` number, since 3 + 8 + 54 + 3 + 7 + 3 + 1 + 580 + 7 = 666.

It is not a de Polignac number, because 385437315807 - 2² = 385437315803 is a prime.

It is a super-2 number, since 2×385437315807² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385437315803) 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, 7137728044 + ... + 7137728097.

It is an arithmetic number, because the mean of its divisors is an integer number (71377280710).

Almost surely, 2^385437315807 is an apocalyptic number.

385437315807 is a deficient number, since it is larger than the sum of its proper divisors (185580929873).

385437315807 is a wasteful number, since it uses less digits than its factorization.

385437315807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14275456150 (or 14275456144 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 385437315807 in words is "three hundred eighty-five billion, four hundred thirty-seven million, three hundred fifteen thousand, eight hundred seven".