26001407570057 has 4 divisors (see below), whose sum is σ = 26137540594176. Its totient is φ = 25865274545940.

The previous prime is 26001407570051. The next prime is 26001407570071. The reversal of 26001407570057 is 75007570410062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26001407570057 - 2¹² = 26001407565961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26001407570051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68066511773 + ... + 68066512154.

It is an arithmetic number, because the mean of its divisors is an integer number (6534385148544).

Almost surely, 2^{26001407570057} is an apocalyptic number.

It is an amenable number.

26001407570057 is a deficient number, since it is larger than the sum of its proper divisors (136133024119).

26001407570057 is a wasteful number, since it uses less digits than its factorization.

26001407570057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136133024118.

The product of its (nonzero) digits is 411600, while the sum is 44.

The spelling of 26001407570057 in words is "twenty-six trillion, one billion, four hundred seven million, five hundred seventy thousand, fifty-seven".