69264813645 has 12 divisors (see below), whose sum is σ = 120059010396. Its totient is φ = 36941233920.

The previous prime is 69264813643. The next prime is 69264813691. The reversal of 69264813645 is 54631846296.

69264813645 is a `hidden beast` number, since 6 + 92 + 6 + 481 + 36 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53702500644 + 15562313001 = 231738^2 + 124749^2 .

It is not a de Polignac number, because 69264813645 - 2¹ = 69264813643 is a prime.

It is a super-3 number, since 3×69264813645³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 69264813591 and 69264813600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69264813643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 769608996 + ... + 769609085.

It is an arithmetic number, because the mean of its divisors is an integer number (10004917533).

Almost surely, 2^69264813645 is an apocalyptic number.

It is an amenable number.

69264813645 is a deficient number, since it is larger than the sum of its proper divisors (50794196751).

69264813645 is a wasteful number, since it uses less digits than its factorization.

69264813645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539218092 (or 1539218089 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 69264813645 in words is "sixty-nine billion, two hundred sixty-four million, eight hundred thirteen thousand, six hundred forty-five".