872857858783 has 2 divisors, whose sum is σ = 872857858784. Its totient is φ = 872857858782.

The previous prime is 872857858723. The next prime is 872857858787. The reversal of 872857858783 is 387858758278.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872857858783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872857858787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436428929391 + 436428929392.

It is an arithmetic number, because the mean of its divisors is an integer number (436428929392).

Almost surely, 2^872857858783 is an apocalyptic number.

872857858783 is a deficient number, since it is larger than the sum of its proper divisors (1).

872857858783 is an equidigital number, since it uses as much as digits as its factorization.

872857858783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1685913600, while the sum is 76.

The spelling of 872857858783 in words is "eight hundred seventy-two billion, eight hundred fifty-seven million, eight hundred fifty-eight thousand, seven hundred eighty-three".