26265600021 has 8 divisors (see below), whose sum is σ = 35252726464. Its totient is φ = 17394436800.

The previous prime is 26265600017. The next prime is 26265600029. The reversal of 26265600021 is 12000656262.

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

It is not a de Polignac number, because 26265600021 - 2² = 26265600017 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 (26265600029) 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, 28990276 + ... + 28991181.

It is an arithmetic number, because the mean of its divisors is an integer number (4406590808).

Almost surely, 2^26265600021 is an apocalyptic number.

It is an amenable number.

26265600021 is a deficient number, since it is larger than the sum of its proper divisors (8987126443).

26265600021 is a wasteful number, since it uses less digits than its factorization.

26265600021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57981611.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 26265600021 in words is "twenty-six billion, two hundred sixty-five million, six hundred thousand, twenty-one".