2993861863 has 4 divisors (see below), whose sum is σ = 3151433560. Its totient is φ = 2836290168.

The previous prime is 2993861837. The next prime is 2993861869. The reversal of 2993861863 is 3681683992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2993861863 - 2²⁹ = 2456990951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993861869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78785820 + ... + 78785857.

It is an arithmetic number, because the mean of its divisors is an integer number (787858390).

Almost surely, 2^2993861863 is an apocalyptic number.

2993861863 is a deficient number, since it is larger than the sum of its proper divisors (157571697).

2993861863 is a wasteful number, since it uses less digits than its factorization.

2993861863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157571696.

The product of its digits is 3359232, while the sum is 55.

The square root of 2993861863 is about 54716.1937912352. The cubic root of 2993861863 is about 1441.2652625278.

The spelling of 2993861863 in words is "two billion, nine hundred ninety-three million, eight hundred sixty-one thousand, eight hundred sixty-three".