690929481229 has 4 divisors (see below), whose sum is σ = 744077902876. Its totient is φ = 637781059584.

The previous prime is 690929481181. The next prime is 690929481233. The reversal of 690929481229 is 922184929096.

690929481229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65838428100 + 625091053129 = 256590^2 + 790627^2 .

It is a cyclic number.

It is not a de Polignac number, because 690929481229 - 2²⁹ = 690392610317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690929481289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26574210804 + ... + 26574210829.

It is an arithmetic number, because the mean of its divisors is an integer number (186019475719).

Almost surely, 2^690929481229 is an apocalyptic number.

It is an amenable number.

690929481229 is a deficient number, since it is larger than the sum of its proper divisors (53148421647).

690929481229 is a wasteful number, since it uses less digits than its factorization.

690929481229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53148421646.

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 690929481229 in words is "six hundred ninety billion, nine hundred twenty-nine million, four hundred eighty-one thousand, two hundred twenty-nine".