203907428004 has 72 divisors (see below), whose sum is σ = 568422594880. Its totient is φ = 55726241472.

The previous prime is 203907427991. The next prime is 203907428017. The reversal of 203907428004 is 400824709302.

It is an interprime number because it is at equal distance from previous prime (203907427991) and next prime (203907428017).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2249959 + ... + 2338830.

Almost surely, 2^203907428004 is an apocalyptic number.

It is an amenable number.

203907428004 is an abundant number, since it is smaller than the sum of its proper divisors (364515166876).

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

203907428004 is a wasteful number, since it uses less digits than its factorization.

203907428004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588849 (or 4588824 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 203907428004 in words is "two hundred three billion, nine hundred seven million, four hundred twenty-eight thousand, four".