26461764505 has 16 divisors (see below), whose sum is σ = 34977181824. Its totient is φ = 19058071680.

The previous prime is 26461764467. The next prime is 26461764551. The reversal of 26461764505 is 50546716462.

It is not a de Polignac number, because 26461764505 - 2²⁵ = 26428210073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2329884 + ... + 2341213.

It is an arithmetic number, because the mean of its divisors is an integer number (2186073864).

Almost surely, 2^26461764505 is an apocalyptic number.

It is an amenable number.

26461764505 is a deficient number, since it is larger than the sum of its proper divisors (8515417319).

26461764505 is a wasteful number, since it uses less digits than its factorization.

26461764505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671216.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 26461764505 in words is "twenty-six billion, four hundred sixty-one million, seven hundred sixty-four thousand, five hundred five".