26454201061 has 4 divisors (see below), whose sum is σ = 26607115692. Its totient is φ = 26301286432.

The previous prime is 26454201017. The next prime is 26454201073. The reversal of 26454201061 is 16010245462.

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 21522650436 + 4931550625 = 146706^2 + 70225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26454201061 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 (26454201091) 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, 76457056 + ... + 76457401.

It is an arithmetic number, because the mean of its divisors is an integer number (6651778923).

Almost surely, 2^26454201061 is an apocalyptic number.

It is an amenable number.

26454201061 is a deficient number, since it is larger than the sum of its proper divisors (152914631).

26454201061 is a wasteful number, since it uses less digits than its factorization.

26454201061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152914630.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 26454201061 in words is "twenty-six billion, four hundred fifty-four million, two hundred one thousand, sixty-one".