690404063205 has 32 divisors (see below), whose sum is σ = 1107150386688. Its totient is φ = 367381224000.

The previous prime is 690404063171. The next prime is 690404063267. The reversal of 690404063205 is 502360404096.

It is not a de Polignac number, because 690404063205 - 2²² = 690399868901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44675730 + ... + 44691180.

It is an arithmetic number, because the mean of its divisors is an integer number (34598449584).

Almost surely, 2^690404063205 is an apocalyptic number.

It is an amenable number.

690404063205 is a deficient number, since it is larger than the sum of its proper divisors (416746323483).

690404063205 is a wasteful number, since it uses less digits than its factorization.

690404063205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22017.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 690404063205 in words is "six hundred ninety billion, four hundred four million, sixty-three thousand, two hundred five".