6750477657 has 128 divisors (see below), whose sum is σ = 13262745600. Its totient is φ = 3285273600.

The previous prime is 6750477647. The next prime is 6750477673. The reversal of 6750477657 is 7567740576.

6750477657 is a `hidden beast` number, since 6 + 7 + 504 + 77 + 65 + 7 = 666.

It is not a de Polignac number, because 6750477657 - 2¹⁶ = 6750412121 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6750477637) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13748182 + ... + 13748672.

It is an arithmetic number, because the mean of its divisors is an integer number (103615200).

Almost surely, 2^6750477657 is an apocalyptic number.

It is an amenable number.

6750477657 is a deficient number, since it is larger than the sum of its proper divisors (6512267943).

6750477657 is a wasteful number, since it uses less digits than its factorization.

6750477657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 8643600, while the sum is 54.

The square root of 6750477657 is about 82161.2905022797. The cubic root of 6750477657 is about 1889.9261523174.

It can be divided in two parts, 67504 and 77657, that added together give a square (145161 = 381²).

The spelling of 6750477657 in words is "six billion, seven hundred fifty million, four hundred seventy-seven thousand, six hundred fifty-seven".