26197287424 has 160 divisors (see below), whose sum is σ = 65431276416. Its totient is φ = 10179870720.

The previous prime is 26197287401. The next prime is 26197287437. The reversal of 26197287424 is 42478279162.

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, 21958572 + ... + 21959764.

Almost surely, 2^26197287424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26197287424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32715638208).

26197287424 is an abundant number, since it is smaller than the sum of its proper divisors (39233988992).

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

26197287424 is a wasteful number, since it uses less digits than its factorization.

26197287424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1770 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The spelling of 26197287424 in words is "twenty-six billion, one hundred ninety-seven million, two hundred eighty-seven thousand, four hundred twenty-four".