26215056631 has 8 divisors (see below), whose sum is σ = 26423162864. Its totient is φ = 26007471360.

The previous prime is 26215056617. The next prime is 26215056641. The reversal of 26215056631 is 13665051262.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26215056631 is a prime.

It is a super-2 number, since 2×26215056631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26215056611) 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, 28890 + ... + 230791.

It is an arithmetic number, because the mean of its divisors is an integer number (3302895358).

Almost surely, 2^26215056631 is an apocalyptic number.

26215056631 is a deficient number, since it is larger than the sum of its proper divisors (208106233).

26215056631 is a wasteful number, since it uses less digits than its factorization.

26215056631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260481.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 26215056631 in words is "twenty-six billion, two hundred fifteen million, fifty-six thousand, six hundred thirty-one".