999146852387 has 2 divisors, whose sum is σ = 999146852388. Its totient is φ = 999146852386.

The previous prime is 999146852311. The next prime is 999146852411. The reversal of 999146852387 is 783258641999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999146852387 - 2²² = 999142658083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999146852387.

It is not a weakly prime, because it can be changed into another prime (999146812387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499573426193 + 499573426194.

It is an arithmetic number, because the mean of its divisors is an integer number (499573426194).

Almost surely, 2^999146852387 is an apocalyptic number.

999146852387 is a deficient number, since it is larger than the sum of its proper divisors (1).

999146852387 is an equidigital number, since it uses as much as digits as its factorization.

999146852387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235146240, while the sum is 71.

The spelling of 999146852387 in words is "nine hundred ninety-nine billion, one hundred forty-six million, eight hundred fifty-two thousand, three hundred eighty-seven".