857929365073 has 4 divisors (see below), whose sum is σ = 935922943728. Its totient is φ = 779935786420.

The previous prime is 857929365067. The next prime is 857929365077. The reversal of 857929365073 is 370563929758.

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 not a de Polignac number, because 857929365073 - 2⁹ = 857929364561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857929364996 and 857929365014.

It is not an unprimeable number, because it can be changed into a prime (857929365077) 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, 38996789311 + ... + 38996789332.

It is an arithmetic number, because the mean of its divisors is an integer number (233980735932).

Almost surely, 2^857929365073 is an apocalyptic number.

It is an amenable number.

857929365073 is a deficient number, since it is larger than the sum of its proper divisors (77993578655).

857929365073 is a wasteful number, since it uses less digits than its factorization.

857929365073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77993578654.

The product of its (nonzero) digits is 85730400, while the sum is 64.

The spelling of 857929365073 in words is "eight hundred fifty-seven billion, nine hundred twenty-nine million, three hundred sixty-five thousand, seventy-three".