690436671062 has 4 divisors (see below), whose sum is σ = 1035655006596. Its totient is φ = 345218335530.

The previous prime is 690436671007. The next prime is 690436671109. The reversal of 690436671062 is 260176634096.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 690436671062.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 172609167764 + ... + 172609167767.

It is an arithmetic number, because the mean of its divisors is an integer number (258913751649).

Almost surely, 2^690436671062 is an apocalyptic number.

690436671062 is a deficient number, since it is larger than the sum of its proper divisors (345218335534).

690436671062 is a wasteful number, since it uses less digits than its factorization.

690436671062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345218335533.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 690436671062 in words is "six hundred ninety billion, four hundred thirty-six million, six hundred seventy-one thousand, sixty-two".