13706745890 has 32 divisors (see below), whose sum is σ = 27024263280. Its totient is φ = 4982247424.

The previous prime is 13706745887. The next prime is 13706745931. The reversal of 13706745890 is 9854760731.

It can be written as a sum of positive squares in 8 ways, for example, as 8119631881 + 5587114009 = 90109^2 + 74747^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385207 + ... + 1395066.

Almost surely, 2^13706745890 is an apocalyptic number.

13706745890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13706745890 is a deficient number, since it is larger than the sum of its proper divisors (13317517390).

13706745890 is a wasteful number, since it uses less digits than its factorization.

13706745890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780326.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 13706745890 in words is "thirteen billion, seven hundred six million, seven hundred forty-five thousand, eight hundred ninety".