26186366428 has 24 divisors (see below), whose sum is σ = 48664944720. Its totient is φ = 12294293760.

The previous prime is 26186366413. The next prime is 26186366461. The reversal of 26186366428 is 82466368162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516003 + ... + 1533178.

It is an arithmetic number, because the mean of its divisors is an integer number (2027706030).

Almost surely, 2^26186366428 is an apocalyptic number.

It is an amenable number.

26186366428 is a deficient number, since it is larger than the sum of its proper divisors (22478578292).

26186366428 is a wasteful number, since it uses less digits than its factorization.

26186366428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049317 (or 3049315 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 52.

The spelling of 26186366428 in words is "twenty-six billion, one hundred eighty-six million, three hundred sixty-six thousand, four hundred twenty-eight".