26906636390 has 16 divisors (see below), whose sum is σ = 49558270608. Its totient is φ = 10512360096.

The previous prime is 26906636377. The next prime is 26906636413. The reversal of 26906636390 is 9363660962.

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, 31286357 + ... + 31287216.

It is an arithmetic number, because the mean of its divisors is an integer number (3097391913).

Almost surely, 2^26906636390 is an apocalyptic number.

26906636390 is a deficient number, since it is larger than the sum of its proper divisors (22651634218).

26906636390 is a wasteful number, since it uses less digits than its factorization.

26906636390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62573623.

The product of its (nonzero) digits is 1889568, while the sum is 50.

The spelling of 26906636390 in words is "twenty-six billion, nine hundred six million, six hundred thirty-six thousand, three hundred ninety".