26258470394 has 16 divisors (see below), whose sum is σ = 42570672648. Its totient is φ = 12075538752.

The previous prime is 26258470391. The next prime is 26258470411. The reversal of 26258470394 is 49307485262.

It can be written as a sum of positive squares in 4 ways, for example, as 12490968169 + 13767502225 = 111763^2 + 117335^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26258470391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815797 + ... + 1830200.

Almost surely, 2^26258470394 is an apocalyptic number.

26258470394 is a deficient number, since it is larger than the sum of its proper divisors (16312202254).

26258470394 is a wasteful number, since it uses less digits than its factorization.

26258470394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646289.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 26258470394 in words is "twenty-six billion, two hundred fifty-eight million, four hundred seventy thousand, three hundred ninety-four".