26490915285 has 16 divisors (see below), whose sum is σ = 43419257280. Its totient is φ = 13783890560.

The previous prime is 26490915277. The next prime is 26490915287. The reversal of 26490915285 is 58251909462.

It is not a de Polignac number, because 26490915285 - 2³ = 26490915277 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26490915287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21536715 + ... + 21537944.

It is an arithmetic number, because the mean of its divisors is an integer number (2713703580).

Almost surely, 2^26490915285 is an apocalyptic number.

It is an amenable number.

26490915285 is a deficient number, since it is larger than the sum of its proper divisors (16928341995).

26490915285 is a wasteful number, since it uses less digits than its factorization.

26490915285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43074708.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 26490915285 in words is "twenty-six billion, four hundred ninety million, nine hundred fifteen thousand, two hundred eighty-five".