385424102172 has 48 divisors (see below), whose sum is σ = 905732876160. Its totient is φ = 127560547008.

The previous prime is 385424102131. The next prime is 385424102183. The reversal of 385424102172 is 271201424583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 385424102172.

It is a congruent number.

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, 1896478 + ... + 2089850.

It is an arithmetic number, because the mean of its divisors is an integer number (18869434920).

Almost surely, 2^385424102172 is an apocalyptic number.

It is an amenable number.

385424102172 is an abundant number, since it is smaller than the sum of its proper divisors (520308773988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385424102172 is a wasteful number, since it uses less digits than its factorization.

385424102172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194562 (or 194560 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 385424102172 in words is "three hundred eighty-five billion, four hundred twenty-four million, one hundred two thousand, one hundred seventy-two".