999932958461 has 2 divisors, whose sum is σ = 999932958462. Its totient is φ = 999932958460.

The previous prime is 999932958439. The next prime is 999932958469. The reversal of 999932958461 is 164859239999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 770060655961 + 229872302500 = 877531^2 + 479450^2 .

It is a cyclic number.

It is not a de Polignac number, because 999932958461 - 2³⁸ = 725055051517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999932958469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499966479230 + 499966479231.

It is an arithmetic number, because the mean of its divisors is an integer number (499966479231).

Almost surely, 2^999932958461 is an apocalyptic number.

It is an amenable number.

999932958461 is a deficient number, since it is larger than the sum of its proper divisors (1).

999932958461 is an equidigital number, since it uses as much as digits as its factorization.

999932958461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340122240, while the sum is 74.

The spelling of 999932958461 in words is "nine hundred ninety-nine billion, nine hundred thirty-two million, nine hundred fifty-eight thousand, four hundred sixty-one".