26751291497 has 32 divisors (see below), whose sum is σ = 32562708480. Its totient is φ = 21495015360.

The previous prime is 26751291439. The next prime is 26751291499. The reversal of 26751291497 is 79419215762.

It is not a de Polignac number, because 26751291497 - 2¹⁰ = 26751290473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26751291499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893858 + ... + 923300.

It is an arithmetic number, because the mean of its divisors is an integer number (1017584640).

Almost surely, 2^26751291497 is an apocalyptic number.

It is an amenable number.

26751291497 is a deficient number, since it is larger than the sum of its proper divisors (5811416983).

26751291497 is a wasteful number, since it uses less digits than its factorization.

26751291497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29613.

The product of its digits is 1905120, while the sum is 53.

The spelling of 26751291497 in words is "twenty-six billion, seven hundred fifty-one million, two hundred ninety-one thousand, four hundred ninety-seven".