6747040657 has 16 divisors (see below), whose sum is σ = 8133350400. Its totient is φ = 5467588560.

The previous prime is 6747040621. The next prime is 6747040667. The reversal of 6747040657 is 7560407476.

It is a de Polignac number, because none of the positive numbers 2^k-6747040657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6747040667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13644 + ... + 116962.

It is an arithmetic number, because the mean of its divisors is an integer number (508334400).

Almost surely, 2^6747040657 is an apocalyptic number.

It is an amenable number.

6747040657 is a deficient number, since it is larger than the sum of its proper divisors (1386309743).

6747040657 is a wasteful number, since it uses less digits than its factorization.

6747040657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103836.

The product of its (nonzero) digits is 987840, while the sum is 46.

The square root of 6747040657 is about 82140.3716633910. The cubic root of 6747040657 is about 1889.6053464303.

The spelling of 6747040657 in words is "six billion, seven hundred forty-seven million, forty thousand, six hundred fifty-seven".