26640626353 has 8 divisors (see below), whose sum is σ = 29065484160. Its totient is φ = 24216265680.

The previous prime is 26640626317. The next prime is 26640626359. The reversal of 26640626353 is 35362604662.

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

It is a cyclic number.

It is not a de Polignac number, because 26640626353 - 2²¹ = 26638529201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26640626359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7450 + ... + 230947.

It is an arithmetic number, because the mean of its divisors is an integer number (3633185520).

Almost surely, 2^26640626353 is an apocalyptic number.

It is an amenable number.

26640626353 is a deficient number, since it is larger than the sum of its proper divisors (2424857807).

26640626353 is a wasteful number, since it uses less digits than its factorization.

26640626353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248567.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 26640626353 in words is "twenty-six billion, six hundred forty million, six hundred twenty-six thousand, three hundred fifty-three".