26485477531 has 2 divisors, whose sum is σ = 26485477532. Its totient is φ = 26485477530.

The previous prime is 26485477517. The next prime is 26485477547. The reversal of 26485477531 is 13577458462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26485477531 is a prime.

It is a super-2 number, since 2×26485477531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26485477561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13242738765 + 13242738766.

It is an arithmetic number, because the mean of its divisors is an integer number (13242738766).

Almost surely, 2^26485477531 is an apocalyptic number.

26485477531 is a deficient number, since it is larger than the sum of its proper divisors (1).

26485477531 is an equidigital number, since it uses as much as digits as its factorization.

26485477531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5644800, while the sum is 52.

The spelling of 26485477531 in words is "twenty-six billion, four hundred eighty-five million, four hundred seventy-seven thousand, five hundred thirty-one".