26215462242 has 30 divisors (see below), whose sum is σ = 58746672369. Its totient is φ = 8737800480.

The previous prime is 26215462213. The next prime is 26215462381. The reversal of 26215462242 is 24226451262.

26215462242 is a `hidden beast` number, since 2 + 6 + 21 + 5 + 4 + 622 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21682268001 + 4533194241 = 147249^2 + 67329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114489.

It is a junction number, because it is equal to n+sod(n) for n = 26215462197 and 26215462206.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2054442 + ... + 2067162.

Almost surely, 2^26215462242 is an apocalyptic number.

26215462242 is an abundant number, since it is smaller than the sum of its proper divisors (32531210127).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26215462242 is an frugal number, since it uses more digits than its factorization.

26215462242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25456 (or 12726 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The spelling of 26215462242 in words is "twenty-six billion, two hundred fifteen million, four hundred sixty-two thousand, two hundred forty-two".