26546918620 has 48 divisors (see below), whose sum is σ = 57311978976. Its totient is φ = 10322816000.

The previous prime is 26546918591. The next prime is 26546918647. The reversal of 26546918620 is 2681964562.

It is a congruent 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, 172815 + ... + 288025.

It is an arithmetic number, because the mean of its divisors is an integer number (1193999562).

Almost surely, 2^26546918620 is an apocalyptic number.

26546918620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26546918620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28655989488).

26546918620 is an abundant number, since it is smaller than the sum of its proper divisors (30765060356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26546918620 is a wasteful number, since it uses less digits than its factorization.

26546918620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115542 (or 115540 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

It can be divided in two parts, 265469 and 18620, that added together give a square (284089 = 533²).

The spelling of 26546918620 in words is "twenty-six billion, five hundred forty-six million, nine hundred eighteen thousand, six hundred twenty".