26401141505 has 64 divisors (see below), whose sum is σ = 34260323328. Its totient is φ = 19496816640.

The previous prime is 26401141499. The next prime is 26401141511. The reversal of 26401141505 is 50514110462.

It is an interprime number because it is at equal distance from previous prime (26401141499) and next prime (26401141511).

It is not a de Polignac number, because 26401141505 - 2⁶ = 26401141441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90106139 + ... + 90106431.

It is an arithmetic number, because the mean of its divisors is an integer number (535317552).

Almost surely, 2^26401141505 is an apocalyptic number.

It is an amenable number.

26401141505 is a deficient number, since it is larger than the sum of its proper divisors (7859181823).

26401141505 is a wasteful number, since it uses less digits than its factorization.

26401141505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 26401141505 its reverse (50514110462), we get a palindrome (76915251967).

The spelling of 26401141505 in words is "twenty-six billion, four hundred one million, one hundred forty-one thousand, five hundred five".