30725845903 has 8 divisors (see below), whose sum is σ = 31165655040. Its totient is φ = 30286232760.

The previous prime is 30725845897. The next prime is 30725845949. The reversal of 30725845903 is 30954852703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30725845903 - 2²¹ = 30723748751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30725845993) 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, 282726 + ... + 376012.

It is an arithmetic number, because the mean of its divisors is an integer number (3895706880).

Almost surely, 2^30725845903 is an apocalyptic number.

30725845903 is a deficient number, since it is larger than the sum of its proper divisors (439809137).

30725845903 is an equidigital number, since it uses as much as digits as its factorization.

30725845903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97997.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 30725845903 in words is "thirty billion, seven hundred twenty-five million, eight hundred forty-five thousand, nine hundred three".