26615361460642 has 8 divisors (see below), whose sum is σ = 39923089555500. Its totient is φ = 13307664942144.

The previous prime is 26615361460561. The next prime is 26615361460643. The reversal of 26615361460642 is 24606416351662.

It can be written as a sum of positive squares in 2 ways, for example, as 23655003776881 + 2960357683761 = 4863641^2 + 1720569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 26615361460642.

It is not an unprimeable number, because it can be changed into a prime (26615361460643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660467 + ... + 9234262.

Almost surely, 2^{26615361460642} is an apocalyptic number.

26615361460642 is a deficient number, since it is larger than the sum of its proper divisors (13307728094858).

26615361460642 is a wasteful number, since it uses less digits than its factorization.

26615361460642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15788180.

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 26615361460642 in words is "twenty-six trillion, six hundred fifteen billion, three hundred sixty-one million, four hundred sixty thousand, six hundred forty-two".