993032240642 has 54 divisors (see below), whose sum is σ = 1639402436763. Its totient is φ = 450923863104.

The previous prime is 993032240609. The next prime is 993032240719. The reversal of 993032240642 is 246042230399.

It can be written as a sum of positive squares in 5 ways, for example, as 537554378761 + 455477861881 = 733181^2 + 674891^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=704639.

It is a super-2 number, since 2×993032240642² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 993032240593 and 993032240602.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1227480734 + ... + 1227481542.

Almost surely, 2^993032240642 is an apocalyptic number.

993032240642 is a deficient number, since it is larger than the sum of its proper divisors (646370196121).

993032240642 is an frugal number, since it uses more digits than its factorization.

993032240642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 993032240642 in words is "nine hundred ninety-three billion, thirty-two million, two hundred forty thousand, six hundred forty-two".