26446463394 has 64 divisors (see below), whose sum is σ = 59993136000. Its totient is φ = 7704778752.

The previous prime is 26446463341. The next prime is 26446463429. The reversal of 26446463394 is 49336464462.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3453682 + ... + 3461330.

It is an arithmetic number, because the mean of its divisors is an integer number (937392750).

Almost surely, 2^26446463394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26446463394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29996568000).

26446463394 is an abundant number, since it is smaller than the sum of its proper divisors (33546672606).

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

26446463394 is a wasteful number, since it uses less digits than its factorization.

26446463394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019.

The product of its digits is 8957952, while the sum is 51.

The spelling of 26446463394 in words is "twenty-six billion, four hundred forty-six million, four hundred sixty-three thousand, three hundred ninety-four".