6740121577 has 8 divisors (see below), whose sum is σ = 7779264192. Its totient is φ = 5720046000.

The previous prime is 6740121547. The next prime is 6740121599. The reversal of 6740121577 is 7751210476.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6740121577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6740121517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4765999 + ... + 4767412.

It is an arithmetic number, because the mean of its divisors is an integer number (972408024).

Almost surely, 2^6740121577 is an apocalyptic number.

It is an amenable number.

6740121577 is a deficient number, since it is larger than the sum of its proper divisors (1039142615).

6740121577 is a wasteful number, since it uses less digits than its factorization.

6740121577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533519.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 6740121577 is about 82098.2434464952. The cubic root of 6740121577 is about 1888.9591963620.

The spelling of 6740121577 in words is "six billion, seven hundred forty million, one hundred twenty-one thousand, five hundred seventy-seven".