10642742217 has 24 divisors (see below), whose sum is σ = 15504897408. Its totient is φ = 7034320800.

The previous prime is 10642742207. The next prime is 10642742311. The reversal of 10642742217 is 71224724601.

10642742217 is a `hidden beast` number, since 1 + 0 + 6 + 427 + 4 + 221 + 7 = 666.

It is not a de Polignac number, because 10642742217 - 2¹² = 10642738121 is a prime.

It is a super-2 number, since 2×10642742217² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10642742207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1447683 + ... + 1455015.

It is an arithmetic number, because the mean of its divisors is an integer number (646037392).

Almost surely, 2^10642742217 is an apocalyptic number.

It is an amenable number.

10642742217 is a deficient number, since it is larger than the sum of its proper divisors (4862155191).

10642742217 is a wasteful number, since it uses less digits than its factorization.

10642742217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701 (or 8698 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 10642742217 in words is "ten billion, six hundred forty-two million, seven hundred forty-two thousand, two hundred seventeen".