25783436076782 has 16 divisors (see below), whose sum is σ = 39143375122320. Its totient is φ = 12735662268672.

The previous prime is 25783436076737. The next prime is 25783436076799. The reversal of 25783436076782 is 28767063438752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579523 + ... + 7352670.

It is an arithmetic number, because the mean of its divisors is an integer number (2446460945145).

Almost surely, 2^{25783436076782} is an apocalyptic number.

25783436076782 is a deficient number, since it is larger than the sum of its proper divisors (13359939045538).

25783436076782 is a wasteful number, since it uses less digits than its factorization.

25783436076782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8949667.

The product of its (nonzero) digits is 568995840, while the sum is 68.

The spelling of 25783436076782 in words is "twenty-five trillion, seven hundred eighty-three billion, four hundred thirty-six million, seventy-six thousand, seven hundred eighty-two".