69889840990 has 32 divisors (see below), whose sum is σ = 126191520000. Its totient is φ = 27869434368.

The previous prime is 69889840973. The next prime is 69889841003. The reversal of 69889840990 is 9904898896.

It is a congruent number.

It is an unprimeable number.

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, 5113686 + ... + 5127334.

It is an arithmetic number, because the mean of its divisors is an integer number (3943485000).

Almost surely, 2^69889840990 is an apocalyptic number.

69889840990 is a deficient number, since it is larger than the sum of its proper divisors (56301679010).

69889840990 is a wasteful number, since it uses less digits than its factorization.

69889840990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204.

The product of its (nonzero) digits is 80621568, while the sum is 70.

The spelling of 69889840990 in words is "sixty-nine billion, eight hundred eighty-nine million, eight hundred forty thousand, nine hundred ninety".