26006266642 has 4 divisors (see below), whose sum is σ = 39009399966. Its totient is φ = 13003133320.

The previous prime is 26006266633. The next prime is 26006266651. The reversal of 26006266642 is 24666260062.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (26006266633) and next prime (26006266651).

It can be written as a sum of positive squares in only one way, i.e., 25581123481 + 425143161 = 159941^2 + 20619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26006266595 and 26006266604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6501566659 + ... + 6501566662.

Almost surely, 2^26006266642 is an apocalyptic number.

26006266642 is a deficient number, since it is larger than the sum of its proper divisors (13003133324).

26006266642 is a wasteful number, since it uses less digits than its factorization.

26006266642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003133323.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 26006266642 in words is "twenty-six billion, six million, two hundred sixty-six thousand, six hundred forty-two".