204345523402 has 16 divisors (see below), whose sum is σ = 338659589952. Its totient is φ = 91981616320.

The previous prime is 204345523367. The next prime is 204345523409. The reversal of 204345523402 is 204325543402.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (204345523409) 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, 130654924 + ... + 130656487.

It is an arithmetic number, because the mean of its divisors is an integer number (21166224372).

Almost surely, 2^204345523402 is an apocalyptic number.

204345523402 is a deficient number, since it is larger than the sum of its proper divisors (134314066550).

204345523402 is a wasteful number, since it uses less digits than its factorization.

204345523402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261311453.

The product of its (nonzero) digits is 115200, while the sum is 34.

The spelling of 204345523402 in words is "two hundred four billion, three hundred forty-five million, five hundred twenty-three thousand, four hundred two".