6126986993 has 4 divisors (see below), whose sum is σ = 6127291248. Its totient is φ = 6126682740.

The previous prime is 6126986959. The next prime is 6126987001. The reversal of 6126986993 is 3996896216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6126986993 is a prime.

It is a super-2 number, since 2×6126986993² = 75079939224782364098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6126986923) 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, 119603 + ... + 162968.

It is an arithmetic number, because the mean of its divisors is an integer number (1531822812).

Almost surely, 2^6126986993 is an apocalyptic number.

It is an amenable number.

6126986993 is a deficient number, since it is larger than the sum of its proper divisors (304255).

6126986993 is a wasteful number, since it uses less digits than its factorization.

6126986993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304254.

The product of its digits is 7558272, while the sum is 59.

The square root of 6126986993 is about 78275.0726157440. The cubic root of 6126986993 is about 1829.8506843643.

The spelling of 6126986993 in words is "six billion, one hundred twenty-six million, nine hundred eighty-six thousand, nine hundred ninety-three".