6839690789450 has 24 divisors (see below), whose sum is σ = 12726800399532. Its totient is φ = 2734806309120.

The previous prime is 6839690789441. The next prime is 6839690789471. The reversal of 6839690789450 is 549870969386.

It can be written as a sum of positive squares in 6 ways, for example, as 4025251727809 + 2814439061641 = 2006303^2 + 1677629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26621039 + ... + 26876738.

Almost surely, 2^{6839690789450} is an apocalyptic number.

6839690789450 is a deficient number, since it is larger than the sum of its proper divisors (5887109610082).

6839690789450 is a wasteful number, since it uses less digits than its factorization.

6839690789450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53500346 (or 53500341 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 74.

The spelling of 6839690789450 in words is "six trillion, eight hundred thirty-nine billion, six hundred ninety million, seven hundred eighty-nine thousand, four hundred fifty".