25626050978 has 16 divisors (see below), whose sum is σ = 41943775104. Its totient is φ = 11645361360.

The previous prime is 25626050959. The next prime is 25626050987. The reversal of 25626050978 is 87905062652.

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 7 ways as a sum of consecutive naturals, for example, 48650 + ... + 231557.

It is an arithmetic number, because the mean of its divisors is an integer number (2621485944).

Almost surely, 2^25626050978 is an apocalyptic number.

25626050978 is a deficient number, since it is larger than the sum of its proper divisors (16317724126).

25626050978 is a wasteful number, since it uses less digits than its factorization.

25626050978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284377.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 25626050978 in words is "twenty-five billion, six hundred twenty-six million, fifty thousand, nine hundred seventy-eight".