8690857314021 has 40 divisors (see below), whose sum is σ = 13102366357080. Its totient is φ = 5740510583808.

The previous prime is 8690857313993. The next prime is 8690857314071. The reversal of 8690857314021 is 1204137580968.

8690857314021 is a `hidden beast` number, since 8 + 6 + 9 + 0 + 8 + 573 + 1 + 40 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3246969744225 + 5443887569796 = 1801935^2 + 2333214^2 .

It is not a de Polignac number, because 8690857314021 - 2⁷ = 8690857313893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8690857314071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24804571 + ... + 25152503.

It is an arithmetic number, because the mean of its divisors is an integer number (327559158927).

It is a 1-persistent number, because it is pandigital, but 2⋅8690857314021 = 17381714628042 is not.

Almost surely, 2^{8690857314021} is an apocalyptic number.

8690857314021 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8690857314021 is a deficient number, since it is larger than the sum of its proper divisors (4411509043059).

8690857314021 is a wasteful number, since it uses less digits than its factorization.

8690857314021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350787 (or 350778 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 8690857314021 in words is "eight trillion, six hundred ninety billion, eight hundred fifty-seven million, three hundred fourteen thousand, twenty-one".