26463403645 has 32 divisors (see below), whose sum is σ = 36842190336. Its totient is φ = 17872108800.

The previous prime is 26463403619. The next prime is 26463403649. The reversal of 26463403645 is 54630436462.

It is a happy number.

It is not a de Polignac number, because 26463403645 - 2¹¹ = 26463401597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26463403649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2631567 + ... + 2641603.

It is an arithmetic number, because the mean of its divisors is an integer number (1151318448).

Almost surely, 2^26463403645 is an apocalyptic number.

It is an amenable number.

26463403645 is a deficient number, since it is larger than the sum of its proper divisors (10378786691).

26463403645 is a wasteful number, since it uses less digits than its factorization.

26463403645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181.

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 26463403645 in words is "twenty-six billion, four hundred sixty-three million, four hundred three thousand, six hundred forty-five".