25164420377344 has 36 divisors (see below), whose sum is σ = 51081907390920. Its totient is φ = 12368952381440.

The previous prime is 25164420377287. The next prime is 25164420377359. The reversal of 25164420377344 is 44377302446152.

It is a junction number, because it is equal to n+sod(n) for n = 25164420377291 and 25164420377300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833023177 + ... + 833053384.

It is an arithmetic number, because the mean of its divisors is an integer number (1418941871970).

Almost surely, 2^{25164420377344} is an apocalyptic number.

It is an amenable number.

25164420377344 is an abundant number, since it is smaller than the sum of its proper divisors (25917487013576).

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

25164420377344 is an equidigital number, since it uses as much as digits as its factorization.

25164420377344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666076636 (or 1666076622 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 52.

The spelling of 25164420377344 in words is "twenty-five trillion, one hundred sixty-four billion, four hundred twenty million, three hundred seventy-seven thousand, three hundred forty-four".