6740726157 has 48 divisors (see below), whose sum is σ = 11008670400. Its totient is φ = 3937006080.

The previous prime is 6740726147. The next prime is 6740726203. The reversal of 6740726157 is 7516270476.

It is not a de Polignac number, because 6740726157 - 2⁴ = 6740726141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740726107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1775253 + ... + 1779045.

It is an arithmetic number, because the mean of its divisors is an integer number (229347300).

Almost surely, 2^6740726157 is an apocalyptic number.

It is an amenable number.

6740726157 is a deficient number, since it is larger than the sum of its proper divisors (4267944243).

6740726157 is a wasteful number, since it uses less digits than its factorization.

6740726157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 6740726157 is about 82101.9254159121. The cubic root of 6740726157 is about 1889.0156737214.

The spelling of 6740726157 in words is "six billion, seven hundred forty million, seven hundred twenty-six thousand, one hundred fifty-seven".