4026640246657 has 8 divisors (see below), whose sum is σ = 4627299290432. Its totient is φ = 3432337383600.

The previous prime is 4026640246649. The next prime is 4026640246663. The reversal of 4026640246657 is 7566420466204.

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

It is a cyclic number.

It is not a de Polignac number, because 4026640246657 - 2³ = 4026640246649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4026640246687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589043819 + ... + 1589046352.

It is an arithmetic number, because the mean of its divisors is an integer number (578412411304).

Almost surely, 2^{4026640246657} is an apocalyptic number.

It is an amenable number.

4026640246657 is a deficient number, since it is larger than the sum of its proper divisors (600659043775).

4026640246657 is a wasteful number, since it uses less digits than its factorization.

4026640246657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178090359.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 4026640246657 in words is "four trillion, twenty-six billion, six hundred forty million, two hundred forty-six thousand, six hundred fifty-seven".