285420944725 has 48 divisors (see below), whose sum is σ = 406314883072. Its totient is φ = 194831904960.

The previous prime is 285420944717. The next prime is 285420944759. The reversal of 285420944725 is 527449024582.

It is not a de Polignac number, because 285420944725 - 2³ = 285420944717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64528864 + ... + 64533286.

Almost surely, 2^285420944725 is an apocalyptic number.

285420944725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285420944725 is a deficient number, since it is larger than the sum of its proper divisors (120893938347).

285420944725 is a wasteful number, since it uses less digits than its factorization.

285420944725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026 (or 6021 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 285420944725 in words is "two hundred eighty-five billion, four hundred twenty million, nine hundred forty-four thousand, seven hundred twenty-five".