26390406742 has 8 divisors (see below), whose sum is σ = 45240697296. Its totient is φ = 11310174312.

The previous prime is 26390406719. The next prime is 26390406743. The reversal of 26390406742 is 24760409362.

26390406742 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26390406743) by changing a digit.

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, 942514513 + ... + 942514540.

It is an arithmetic number, because the mean of its divisors is an integer number (5655087162).

Almost surely, 2^26390406742 is an apocalyptic number.

26390406742 is a deficient number, since it is larger than the sum of its proper divisors (18850290554).

26390406742 is a wasteful number, since it uses less digits than its factorization.

26390406742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885029062.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 26390406742 in words is "twenty-six billion, three hundred ninety million, four hundred six thousand, seven hundred forty-two".