26620740342646 has 8 divisors (see below), whose sum is σ = 40493520521424. Its totient is φ = 13122900168840.

The previous prime is 26620740342641. The next prime is 26620740342667. The reversal of 26620740342646 is 64624304702662.

It is a happy number.

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 = 26620740342593 and 26620740342602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26620740342641) 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, 93735001065 + ... + 93735001348.

It is an arithmetic number, because the mean of its divisors is an integer number (5061690065178).

Almost surely, 2^{26620740342646} is an apocalyptic number.

26620740342646 is a deficient number, since it is larger than the sum of its proper divisors (13872780178778).

26620740342646 is a wasteful number, since it uses less digits than its factorization.

26620740342646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187470002486.

The product of its (nonzero) digits is 13934592, while the sum is 52.

The spelling of 26620740342646 in words is "twenty-six trillion, six hundred twenty billion, seven hundred forty million, three hundred forty-two thousand, six hundred forty-six".