2626864640408 has 8 divisors (see below), whose sum is σ = 4925371200780. Its totient is φ = 1313432320200.

The previous prime is 2626864640401. The next prime is 2626864640431. The reversal of 2626864640408 is 8040464686262.

2626864640408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2626864640408² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2626864640401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164179040018 + ... + 164179040033.

Almost surely, 2^{2626864640408} is an apocalyptic number.

It is an amenable number.

2626864640408 is a deficient number, since it is larger than the sum of its proper divisors (2298506560372).

2626864640408 is a wasteful number, since it uses less digits than its factorization.

2626864640408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328358080057 (or 328358080053 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 56.

It can be divided in two parts, 262686 and 4640408, that added together give a palindrome (4903094).

The spelling of 2626864640408 in words is "two trillion, six hundred twenty-six billion, eight hundred sixty-four million, six hundred forty thousand, four hundred eight".