857664207414 has 72 divisors (see below), whose sum is σ = 2159127275760. Its totient is φ = 241029622080.

The previous prime is 857664207409. The next prime is 857664207443. The reversal of 857664207414 is 414702466758.

857664207414 is a `hidden beast` number, since 8 + 576 + 6 + 4 + 20 + 7 + 41 + 4 = 666.

857664207414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 445809 + ... + 1383500.

It is an arithmetic number, because the mean of its divisors is an integer number (29987878830).

Almost surely, 2^857664207414 is an apocalyptic number.

857664207414 is an abundant number, since it is smaller than the sum of its proper divisors (1301463068346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857664207414 is a wasteful number, since it uses less digits than its factorization.

857664207414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829446 (or 1829382 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 857664207414 in words is "eight hundred fifty-seven billion, six hundred sixty-four million, two hundred seven thousand, four hundred fourteen".