26621012701 has 2 divisors, whose sum is σ = 26621012702. Its totient is φ = 26621012700.

The previous prime is 26621012641. The next prime is 26621012723. The reversal of 26621012701 is 10721012662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19579285476 + 7041727225 = 139926^2 + 83915^2 .

It is a cyclic number.

It is not a de Polignac number, because 26621012701 - 2⁹ = 26621012189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26621012701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26621012771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13310506350 + 13310506351.

It is an arithmetic number, because the mean of its divisors is an integer number (13310506351).

Almost surely, 2^26621012701 is an apocalyptic number.

It is an amenable number.

26621012701 is a deficient number, since it is larger than the sum of its proper divisors (1).

26621012701 is an equidigital number, since it uses as much as digits as its factorization.

26621012701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 26621012701 in words is "twenty-six billion, six hundred twenty-one million, twelve thousand, seven hundred one".