26405632742 has 16 divisors (see below), whose sum is σ = 39745738800. Its totient is φ = 13157079648.

The previous prime is 26405632727. The next prime is 26405632783. The reversal of 26405632742 is 24723650462.

It is a self number, because there is not a number n which added to its sum of digits gives 26405632742.

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, 3824009 + ... + 3830907.

It is an arithmetic number, because the mean of its divisors is an integer number (2484108675).

Almost surely, 2^26405632742 is an apocalyptic number.

26405632742 is a deficient number, since it is larger than the sum of its proper divisors (13340106058).

26405632742 is a wasteful number, since it uses less digits than its factorization.

26405632742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 26405632742 in words is "twenty-six billion, four hundred five million, six hundred thirty-two thousand, seven hundred forty-two".