26087101601 has 12 divisors (see below), whose sum is σ = 28738174500. Its totient is φ = 23662679040.

The previous prime is 26087101591. The next prime is 26087101603. The reversal of 26087101601 is 10610178062.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12015448225 + 14071653376 = 109615^2 + 118624^2 .

It is not a de Polignac number, because 26087101601 - 2²² = 26082907297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26087101603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185756 + ... + 294413.

It is an arithmetic number, because the mean of its divisors is an integer number (2394847875).

Almost surely, 2^26087101601 is an apocalyptic number.

It is an amenable number.

26087101601 is a deficient number, since it is larger than the sum of its proper divisors (2651072899).

26087101601 is a wasteful number, since it uses less digits than its factorization.

26087101601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480640 (or 480629 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 26087101601 its reverse (10610178062), we get a palindrome (36697279663).

The spelling of 26087101601 in words is "twenty-six billion, eighty-seven million, one hundred one thousand, six hundred one".