6756563149 has 4 divisors (see below), whose sum is σ = 7721786464. Its totient is φ = 5791339836.

The previous prime is 6756563141. The next prime is 6756563159. The reversal of 6756563149 is 9413656576.

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 not a de Polignac number, because 6756563149 - 2³ = 6756563141 is a prime.

It is a super-2 number, since 2×6756563149² = 91302291172849592402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6756563096 and 6756563105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6756563141) 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, 482611647 + ... + 482611660.

It is an arithmetic number, because the mean of its divisors is an integer number (1930446616).

Almost surely, 2^6756563149 is an apocalyptic number.

It is an amenable number.

6756563149 is a deficient number, since it is larger than the sum of its proper divisors (965223315).

6756563149 is an equidigital number, since it uses as much as digits as its factorization.

6756563149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965223314.

The product of its digits is 4082400, while the sum is 52.

The square root of 6756563149 is about 82198.3159742339. The cubic root of 6756563149 is about 1890.4938986183.

The spelling of 6756563149 in words is "six billion, seven hundred fifty-six million, five hundred sixty-three thousand, one hundred forty-nine".