106889840690 has 16 divisors (see below), whose sum is σ = 192692801880. Its totient is φ = 42691249920.

The previous prime is 106889840657. The next prime is 106889840741. The reversal of 106889840690 is 96048988601.

It can be written as a sum of positive squares in 4 ways, for example, as 66529432489 + 40360408201 = 257933^2 + 200899^2 .

It is a super-2 number, since 2×106889840690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8078855 + ... + 8092074.

Almost surely, 2^106889840690 is an apocalyptic number.

106889840690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106889840690 is a deficient number, since it is larger than the sum of its proper divisors (85802961190).

106889840690 is a wasteful number, since it uses less digits than its factorization.

106889840690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16171597.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 106889840690 in words is "one hundred six billion, eight hundred eighty-nine million, eight hundred forty thousand, six hundred ninety".