6712781745 has 8 divisors (see below), whose sum is σ = 10740450816. Its totient is φ = 3580150256.

The previous prime is 6712781741. The next prime is 6712781749. The reversal of 6712781745 is 5471872176.

It is an interprime number because it is at equal distance from previous prime (6712781741) and next prime (6712781749).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6712781745 - 2² = 6712781741 is a prime.

It is a super-2 number, since 2×6712781745² = 90122877512010490050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6712781694 and 6712781703.

It is not an unprimeable number, because it can be changed into a prime (6712781741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223759377 + ... + 223759406.

It is an arithmetic number, because the mean of its divisors is an integer number (1342556352).

Almost surely, 2^6712781745 is an apocalyptic number.

It is an amenable number.

6712781745 is a deficient number, since it is larger than the sum of its proper divisors (4027669071).

6712781745 is a wasteful number, since it uses less digits than its factorization.

6712781745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447518791.

The product of its digits is 658560, while the sum is 48.

The square root of 6712781745 is about 81931.5674511357. The cubic root of 6712781745 is about 1886.4016850185.

The spelling of 6712781745 in words is "six billion, seven hundred twelve million, seven hundred eighty-one thousand, seven hundred forty-five".