26202770861 has 8 divisors (see below), whose sum is σ = 27923768064. Its totient is φ = 24530252560.

The previous prime is 26202770843. The next prime is 26202770879. The reversal of 26202770861 is 16807720262.

It is an interprime number because it is at equal distance from previous prime (26202770843) and next prime (26202770879).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-26202770861 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 (26202770821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12118610 + ... + 12120771.

It is an arithmetic number, because the mean of its divisors is an integer number (3490471008).

Almost surely, 2^26202770861 is an apocalyptic number.

It is an amenable number.

26202770861 is a deficient number, since it is larger than the sum of its proper divisors (1720997203).

26202770861 is a wasteful number, since it uses less digits than its factorization.

26202770861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24239451.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 26202770861 in words is "twenty-six billion, two hundred two million, seven hundred seventy thousand, eight hundred sixty-one".