26243216340554 has 8 divisors (see below), whose sum is σ = 39754575248868. Its totient is φ = 12991691257600.

The previous prime is 26243216340547. The next prime is 26243216340617. The reversal of 26243216340554 is 45504361234262.

It can be written as a sum of positive squares in 2 ways, for example, as 18795649806025 + 7447566534529 = 4335395^2 + 2729023^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 26243216340499 and 26243216340508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64958456087 + ... + 64958456490.

Almost surely, 2^{26243216340554} is an apocalyptic number.

26243216340554 is a deficient number, since it is larger than the sum of its proper divisors (13511358908314).

26243216340554 is a wasteful number, since it uses less digits than its factorization.

26243216340554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129916912680.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 26243216340554 in words is "twenty-six trillion, two hundred forty-three billion, two hundred sixteen million, three hundred forty thousand, five hundred fifty-four".