4206642507517 has 8 divisors (see below), whose sum is σ = 4306488227640. Its totient is φ = 4107937881600.

The previous prime is 4206642507469. The next prime is 4206642507559. The reversal of 4206642507517 is 7157052466024.

It can be written as a sum of positive squares in 4 ways, for example, as 1864552016196 + 2342090491321 = 1365486^2 + 1530389^2 .

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 4206642507517 - 2²³ = 4206634118909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4206642507817) 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, 285266092 + ... + 285280837.

It is an arithmetic number, because the mean of its divisors is an integer number (538311028455).

Almost surely, 2^{4206642507517} is an apocalyptic number.

It is an amenable number.

4206642507517 is a deficient number, since it is larger than the sum of its proper divisors (99845720123).

4206642507517 is a wasteful number, since it uses less digits than its factorization.

4206642507517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570547103.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 4206642507517 in words is "four trillion, two hundred six billion, six hundred forty-two million, five hundred seven thousand, five hundred seventeen".