690524430874 has 8 divisors (see below), whose sum is σ = 1035807594228. Its totient is φ = 345255232800.

The previous prime is 690524430821. The next prime is 690524430913. The reversal of 690524430874 is 478034425096.

It can be written as a sum of positive squares in 2 ways, for example, as 658381319649 + 32143111225 = 811407^2 + 179285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×690524430874⁴ (a number of 48 digits) contains 4444 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3366817 + ... + 3566020.

Almost surely, 2^690524430874 is an apocalyptic number.

690524430874 is a deficient number, since it is larger than the sum of its proper divisors (345283163354).

690524430874 is a wasteful number, since it uses less digits than its factorization.

690524430874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982640.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 690524430874 in words is "six hundred ninety billion, five hundred twenty-four million, four hundred thirty thousand, eight hundred seventy-four".