690533876495 has 4 divisors (see below), whose sum is σ = 828640651800. Its totient is φ = 552427101192.

The previous prime is 690533876453. The next prime is 690533876521. The reversal of 690533876495 is 594678335096.

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

It is a cyclic number.

It is not a de Polignac number, because 690533876495 - 2⁸ = 690533876239 is a prime.

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 in 3 ways as a sum of consecutive naturals, for example, 69053387645 + ... + 69053387654.

It is an arithmetic number, because the mean of its divisors is an integer number (207160162950).

Almost surely, 2^690533876495 is an apocalyptic number.

690533876495 is a deficient number, since it is larger than the sum of its proper divisors (138106775305).

690533876495 is a wasteful number, since it uses less digits than its factorization.

690533876495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138106775304.

The product of its (nonzero) digits is 146966400, while the sum is 65.

The spelling of 690533876495 in words is "six hundred ninety billion, five hundred thirty-three million, eight hundred seventy-six thousand, four hundred ninety-five".