690658964074 has 8 divisors (see below), whose sum is σ = 1042587099108. Its totient is φ = 343129931040.

The previous prime is 690658964069. The next prime is 690658964081. The reversal of 690658964074 is 470469856096.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 643593831049 + 47065133025 = 802243^2 + 216945^2 .

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 = 690658963997 and 690658964015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099775107 + ... + 1099775734.

Almost surely, 2^690658964074 is an apocalyptic number.

690658964074 is a deficient number, since it is larger than the sum of its proper divisors (351928135034).

690658964074 is a wasteful number, since it uses less digits than its factorization.

690658964074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199551000.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 690658964074 in words is "six hundred ninety billion, six hundred fifty-eight million, nine hundred sixty-four thousand, seventy-four".