26311601131 has 4 divisors (see below), whose sum is σ = 27859342392. Its totient is φ = 24763859872.

The previous prime is 26311600979. The next prime is 26311601159. The reversal of 26311601131 is 13110611362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26311601131 - 2¹⁹ = 26311076843 is a prime.

It is a super-2 number, since 2×26311601131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26311601096 and 26311601105.

It is not an unprimeable number, because it can be changed into a prime (26311301131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773870605 + ... + 773870638.

It is an arithmetic number, because the mean of its divisors is an integer number (6964835598).

Almost surely, 2^26311601131 is an apocalyptic number.

26311601131 is a deficient number, since it is larger than the sum of its proper divisors (1547741261).

26311601131 is a wasteful number, since it uses less digits than its factorization.

26311601131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547741260.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 26311601131 in words is "twenty-six billion, three hundred eleven million, six hundred one thousand, one hundred thirty-one".