2630931993 has 24 divisors (see below), whose sum is σ = 3899750400. Its totient is φ = 1708175040.

The previous prime is 2630931991. The next prime is 2630932009. The reversal of 2630931993 is 3991390362.

2630931993 is a `hidden beast` number, since 2 + 630 + 9 + 3 + 1 + 9 + 9 + 3 = 666.

It is not a de Polignac number, because 2630931993 - 2¹ = 2630931991 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2630931991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215080 + ... + 226982.

It is an arithmetic number, because the mean of its divisors is an integer number (162489600).

Almost surely, 2^2630931993 is an apocalyptic number.

It is an amenable number.

2630931993 is a deficient number, since it is larger than the sum of its proper divisors (1268818407).

2630931993 is a wasteful number, since it uses less digits than its factorization.

2630931993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549 (or 12546 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 2630931993 is about 51292.6114854762. The cubic root of 2630931993 is about 1380.5004124075.

The spelling of 2630931993 in words is "two billion, six hundred thirty million, nine hundred thirty-one thousand, nine hundred ninety-three".