999977610403 has 2 divisors, whose sum is σ = 999977610404. Its totient is φ = 999977610402.

The previous prime is 999977610349. The next prime is 999977610439. The reversal of 999977610403 is 304016779999.

It is a strong prime.

It is an emirp because it is prime and its reverse (304016779999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999977610403 is a prime.

It is not a weakly prime, because it can be changed into another prime (999977610703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499988805201 + 499988805202.

It is an arithmetic number, because the mean of its divisors is an integer number (499988805202).

Almost surely, 2^999977610403 is an apocalyptic number.

999977610403 is a deficient number, since it is larger than the sum of its proper divisors (1).

999977610403 is an equidigital number, since it uses as much as digits as its factorization.

999977610403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23147208, while the sum is 64.

The spelling of 999977610403 in words is "nine hundred ninety-nine billion, nine hundred seventy-seven million, six hundred ten thousand, four hundred three".