69321623545 has 16 divisors (see below), whose sum is σ = 84419615232. Its totient is φ = 54636003520.

The previous prime is 69321623543. The next prime is 69321623563. The reversal of 69321623545 is 54532612396.

It is not a de Polignac number, because 69321623545 - 2¹ = 69321623543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69321623495 and 69321623504.

It is not an unprimeable number, because it can be changed into a prime (69321623543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416304 + ... + 558526.

It is an arithmetic number, because the mean of its divisors is an integer number (5276225952).

Almost surely, 2^69321623545 is an apocalyptic number.

It is an amenable number.

69321623545 is a deficient number, since it is larger than the sum of its proper divisors (15097991687).

69321623545 is a wasteful number, since it uses less digits than its factorization.

69321623545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143672.

The product of its digits is 1166400, while the sum is 46.

The spelling of 69321623545 in words is "sixty-nine billion, three hundred twenty-one million, six hundred twenty-three thousand, five hundred forty-five".