345804180403 has 4 divisors (see below), whose sum is σ = 377240924088. Its totient is φ = 314367436720.

The previous prime is 345804180383. The next prime is 345804180413. The reversal of 345804180403 is 304081408543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345804180403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345804180413) 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, 15718371826 + ... + 15718371847.

It is an arithmetic number, because the mean of its divisors is an integer number (94310231022).

Almost surely, 2^345804180403 is an apocalyptic number.

345804180403 is a deficient number, since it is larger than the sum of its proper divisors (31436743685).

345804180403 is a wasteful number, since it uses less digits than its factorization.

345804180403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31436743684.

The product of its (nonzero) digits is 184320, while the sum is 40.

Adding to 345804180403 its reverse (304081408543), we get a palindrome (649885588946).

The spelling of 345804180403 in words is "three hundred forty-five billion, eight hundred four million, one hundred eighty thousand, four hundred three".