25424273378 has 64 divisors (see below), whose sum is σ = 46136736000. Its totient is φ = 10490860800.

The previous prime is 25424273359. The next prime is 25424273423. The reversal of 25424273378 is 87337242452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7975901 + ... + 7979087.

It is an arithmetic number, because the mean of its divisors is an integer number (720886500).

Almost surely, 2^25424273378 is an apocalyptic number.

25424273378 is a deficient number, since it is larger than the sum of its proper divisors (20712462622).

25424273378 is a wasteful number, since it uses less digits than its factorization.

25424273378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3626 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 47.

The spelling of 25424273378 in words is "twenty-five billion, four hundred twenty-four million, two hundred seventy-three thousand, three hundred seventy-eight".