28457325030 has 64 divisors (see below), whose sum is σ = 70721553600. Its totient is φ = 7319800320.

The previous prime is 28457325019. The next prime is 28457325053. The reversal of 28457325030 is 3052375482.

It is a self number, because there is not a number n which added to its sum of digits gives 28457325030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 907656 + ... + 938484.

It is an arithmetic number, because the mean of its divisors is an integer number (1105024275).

Almost surely, 2^28457325030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28457325030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35360776800).

28457325030 is an abundant number, since it is smaller than the sum of its proper divisors (42264228570).

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

28457325030 is a wasteful number, since it uses less digits than its factorization.

28457325030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31929.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 28457325030 in words is "twenty-eight billion, four hundred fifty-seven million, three hundred twenty-five thousand, thirty".