26213787545 has 16 divisors (see below), whose sum is σ = 34963710912. Its totient is φ = 18704861760.

The previous prime is 26213787541. The next prime is 26213787547. The reversal of 26213787545 is 54578731262.

It is not a de Polignac number, because 26213787545 - 2² = 26213787541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26213787493 and 26213787502.

It is not an unprimeable number, because it can be changed into a prime (26213787541) 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 15 ways as a sum of consecutive naturals, for example, 4493447 + ... + 4499276.

It is an arithmetic number, because the mean of its divisors is an integer number (2185231932).

Almost surely, 2^26213787545 is an apocalyptic number.

It is an amenable number.

26213787545 is a deficient number, since it is larger than the sum of its proper divisors (8749923367).

26213787545 is a wasteful number, since it uses less digits than its factorization.

26213787545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992792.

The product of its digits is 2822400, while the sum is 50.

The spelling of 26213787545 in words is "twenty-six billion, two hundred thirteen million, seven hundred eighty-seven thousand, five hundred forty-five".