6745532737 has 4 divisors (see below), whose sum is σ = 6798647296. Its totient is φ = 6692418180.

The previous prime is 6745532723. The next prime is 6745532747. The reversal of 6745532737 is 7372355476.

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-6745532737 is a prime.

It is a super-2 number, since 2×6745532737² = 91004423811877422338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6745532747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26557089 + ... + 26557342.

It is an arithmetic number, because the mean of its divisors is an integer number (1699661824).

Almost surely, 2^6745532737 is an apocalyptic number.

It is an amenable number.

6745532737 is a deficient number, since it is larger than the sum of its proper divisors (53114559).

6745532737 is a wasteful number, since it uses less digits than its factorization.

6745532737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53114558.

The product of its digits is 3704400, while the sum is 49.

The square root of 6745532737 is about 82131.1922292621. The cubic root of 6745532737 is about 1889.4645644125.

The spelling of 6745532737 in words is "six billion, seven hundred forty-five million, five hundred thirty-two thousand, seven hundred thirty-seven".