26420842084646 has 8 divisors (see below), whose sum is σ = 41717119081080. Its totient is φ = 12515135724288.

The previous prime is 26420842084607. The next prime is 26420842084657. The reversal of 26420842084646 is 64648024802462.

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 = 26420842084591 and 26420842084600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347642658971 + ... + 347642659046.

It is an arithmetic number, because the mean of its divisors is an integer number (5214639885135).

Almost surely, 2^{26420842084646} is an apocalyptic number.

26420842084646 is a deficient number, since it is larger than the sum of its proper divisors (15296276996434).

26420842084646 is a wasteful number, since it uses less digits than its factorization.

26420842084646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695285318038.

The product of its (nonzero) digits is 28311552, while the sum is 56.

The spelling of 26420842084646 in words is "twenty-six trillion, four hundred twenty billion, eight hundred forty-two million, eighty-four thousand, six hundred forty-six".