690929481533 has 4 divisors (see below), whose sum is σ = 690944103360. Its totient is φ = 690914859708.

The previous prime is 690929481523. The next prime is 690929481569. The reversal of 690929481533 is 335184929096.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690929481533 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 (690929481523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7239803 + ... + 7334616.

It is an arithmetic number, because the mean of its divisors is an integer number (172736025840).

Almost surely, 2^690929481533 is an apocalyptic number.

It is an amenable number.

690929481533 is a deficient number, since it is larger than the sum of its proper divisors (14621827).

690929481533 is a wasteful number, since it uses less digits than its factorization.

690929481533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14621826.

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 690929481533 in words is "six hundred ninety billion, nine hundred twenty-nine million, four hundred eighty-one thousand, five hundred thirty-three".