6156994293 has 12 divisors (see below), whose sum is σ = 8899183020. Its totient is φ = 4102010496.

The previous prime is 6156994271. The next prime is 6156994307. The reversal of 6156994293 is 3924996516.

It can be written as a sum of positive squares in 2 ways, for example, as 1391439204 + 4765555089 = 37302^2 + 69033^2 .

It is not a de Polignac number, because 6156994293 - 2¹⁴ = 6156977909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6156994993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206278 + ... + 234231.

It is an arithmetic number, because the mean of its divisors is an integer number (741598585).

Almost surely, 2^6156994293 is an apocalyptic number.

It is an amenable number.

6156994293 is a deficient number, since it is larger than the sum of its proper divisors (2742188727).

6156994293 is a wasteful number, since it uses less digits than its factorization.

6156994293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442068 (or 442065 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 6156994293 is about 78466.5170184073. The cubic root of 6156994293 is about 1832.8330900027.

The spelling of 6156994293 in words is "six billion, one hundred fifty-six million, nine hundred ninety-four thousand, two hundred ninety-three".