993623260504931 has 16 divisors (see below), whose sum is σ = 1138893893165568. Its totient is φ = 849185579088000.

The previous prime is 993623260504907. The next prime is 993623260504939. The reversal of 993623260504931 is 139405062326399.

It is a happy number.

It is not a de Polignac number, because 993623260504931 - 2¹⁸ = 993623260242787 is a prime.

It is a super-2 number, since 2×993623260504931² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993623260504939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70099025 + ... + 83072978.

It is an arithmetic number, because the mean of its divisors is an integer number (71180868322848).

Almost surely, 2^{993623260504931} is an apocalyptic number.

993623260504931 is a deficient number, since it is larger than the sum of its proper divisors (145270632660637).

993623260504931 is a wasteful number, since it uses less digits than its factorization.

993623260504931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153174722.

The product of its (nonzero) digits is 56687040, while the sum is 62.

The spelling of 993623260504931 in words is "nine hundred ninety-three trillion, six hundred twenty-three billion, two hundred sixty million, five hundred four thousand, nine hundred thirty-one".