25334099730 has 128 divisors (see below), whose sum is σ = 72767692800. Its totient is φ = 6251297472.

The previous prime is 25334099723. The next prime is 25334099741. The reversal of 25334099730 is 3799043352.

25334099730 is a `hidden beast` number, since 2 + 533 + 40 + 9 + 9 + 73 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163167 + ... + 278013.

It is an arithmetic number, because the mean of its divisors is an integer number (568497600).

Almost surely, 2^25334099730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25334099730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36383846400).

25334099730 is an abundant number, since it is smaller than the sum of its proper divisors (47433593070).

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

25334099730 is a wasteful number, since it uses less digits than its factorization.

25334099730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114925 (or 114919 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The spelling of 25334099730 in words is "twenty-five billion, three hundred thirty-four million, ninety-nine thousand, seven hundred thirty".