25461812970 has 320 divisors, whose sum is σ = 77002928640. Its totient is φ = 5984409600.

The previous prime is 25461812941. The next prime is 25461813001. The reversal of 25461812970 is 7921816452.

25461812970 is a `hidden beast` number, since 2 + 5 + 4 + 618 + 1 + 29 + 7 + 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 159 ways as a sum of consecutive naturals, for example, 42936994 + ... + 42937586.

It is an arithmetic number, because the mean of its divisors is an integer number (240634152).

Almost surely, 2^25461812970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25461812970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38501464320).

25461812970 is an abundant number, since it is smaller than the sum of its proper divisors (51541115670).

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

25461812970 is a wasteful number, since it uses less digits than its factorization.

25461812970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 25461812970 in words is "twenty-five billion, four hundred sixty-one million, eight hundred twelve thousand, nine hundred seventy".