69820224487 has 12 divisors (see below), whose sum is σ = 75632532624. Its totient is φ = 64425241920.

The previous prime is 69820224479. The next prime is 69820224491. The reversal of 69820224487 is 78442202896.

It is a happy number.

It is not a de Polignac number, because 69820224487 - 2³ = 69820224479 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 (69820224427) 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, 381963 + ... + 534355.

It is an arithmetic number, because the mean of its divisors is an integer number (6302711052).

Almost surely, 2^69820224487 is an apocalyptic number.

69820224487 is a deficient number, since it is larger than the sum of its proper divisors (5812308137).

69820224487 is a wasteful number, since it uses less digits than its factorization.

69820224487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155130 (or 155117 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 69820224487 in words is "sixty-nine billion, eight hundred twenty million, two hundred twenty-four thousand, four hundred eighty-seven".