68564972819469 has 48 divisors (see below), whose sum is σ = 106637060221440. Its totient is φ = 39072687413760.

The previous prime is 68564972819377. The next prime is 68564972819477. The reversal of 68564972819469 is 96491827946586.

It is not a de Polignac number, because 68564972819469 - 2¹⁷ = 68564972688397 is a prime.

It is a super-2 number, since 2×68564972819469² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68564972819391 and 68564972819400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68564972819669) 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, 206236164 + ... + 206568354.

It is an arithmetic number, because the mean of its divisors is an integer number (2221605421280).

Almost surely, 2^{68564972819469} is an apocalyptic number.

It is an amenable number.

68564972819469 is a deficient number, since it is larger than the sum of its proper divisors (38072087401971).

68564972819469 is a wasteful number, since it uses less digits than its factorization.

68564972819469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336050 (or 336043 counting only the distinct ones).

The product of its digits is 11287019520, while the sum is 84.

The spelling of 68564972819469 in words is "sixty-eight trillion, five hundred sixty-four billion, nine hundred seventy-two million, eight hundred nineteen thousand, four hundred sixty-nine".