26500007461 has 4 divisors (see below), whose sum is σ = 26646416524. Its totient is φ = 26353598400.

The previous prime is 26500007437. The next prime is 26500007483. The reversal of 26500007461 is 16470000562.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1616522436 + 24883485025 = 40206^2 + 157745^2 .

It is a cyclic number.

It is not a de Polignac number, because 26500007461 - 2¹³ = 26499999269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26500007431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73204260 + ... + 73204621.

It is an arithmetic number, because the mean of its divisors is an integer number (6661604131).

Almost surely, 2^26500007461 is an apocalyptic number.

It is an amenable number.

26500007461 is a deficient number, since it is larger than the sum of its proper divisors (146409063).

26500007461 is a wasteful number, since it uses less digits than its factorization.

26500007461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146409062.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 26500007461 in words is "twenty-six billion, five hundred million, seven thousand, four hundred sixty-one".