69661980538 has 32 divisors (see below), whose sum is σ = 107386905600. Its totient is φ = 33880519296.

The previous prime is 69661980533. The next prime is 69661980643. The reversal of 69661980538 is 83508916696.

It is not an unprimeable number, because it can be changed into a prime (69661980533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11980920 + ... + 11986732.

It is an arithmetic number, because the mean of its divisors is an integer number (3355840800).

Almost surely, 2^69661980538 is an apocalyptic number.

69661980538 is a deficient number, since it is larger than the sum of its proper divisors (37724925062).

69661980538 is a wasteful number, since it uses less digits than its factorization.

69661980538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006.

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 69661980538 in words is "sixty-nine billion, six hundred sixty-one million, nine hundred eighty thousand, five hundred thirty-eight".