690967980385 has 16 divisors (see below), whose sum is σ = 835832822400. Its totient is φ = 548341992576.

The previous prime is 690967980343. The next prime is 690967980419. The reversal of 690967980385 is 583089769096.

It is a cyclic number.

It is not a de Polignac number, because 690967980385 - 2¹³ = 690967972193 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577749 + ... + 1309858.

It is an arithmetic number, because the mean of its divisors is an integer number (52239551400).

Almost surely, 2^690967980385 is an apocalyptic number.

It is an amenable number.

690967980385 is a deficient number, since it is larger than the sum of its proper divisors (144864842015).

690967980385 is a wasteful number, since it uses less digits than its factorization.

690967980385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888200.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 690967980385 in words is "six hundred ninety billion, nine hundred sixty-seven million, nine hundred eighty thousand, three hundred eighty-five".