26087249965 has 16 divisors (see below), whose sum is σ = 35908830720. Its totient is φ = 17822384640.

The previous prime is 26087249963. The next prime is 26087249999. The reversal of 26087249965 is 56994278062.

It is not a de Polignac number, because 26087249965 - 2¹ = 26087249963 is a prime.

It is a super-2 number, since 2×26087249965² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26087249963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365700 + ... + 1384669.

It is an arithmetic number, because the mean of its divisors is an integer number (2244301920).

Almost surely, 2^26087249965 is an apocalyptic number.

It is an amenable number.

26087249965 is a deficient number, since it is larger than the sum of its proper divisors (9821580755).

26087249965 is a wasteful number, since it uses less digits than its factorization.

26087249965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750652.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 26087249965 in words is "twenty-six billion, eighty-seven million, two hundred forty-nine thousand, nine hundred sixty-five".