13445577890 has 16 divisors (see below), whose sum is σ = 24214726008. Its totient is φ = 5375412096.

The previous prime is 13445577883. The next prime is 13445577907. The reversal of 13445577890 is 9877554431.

It can be written as a sum of positive squares in 4 ways, for example, as 13043695681 + 401882209 = 114209^2 + 20047^2 .

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, 332297 + ... + 370556.

Almost surely, 2^13445577890 is an apocalyptic number.

13445577890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13445577890 is a deficient number, since it is larger than the sum of its proper divisors (10769148118).

13445577890 is a wasteful number, since it uses less digits than its factorization.

13445577890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704773.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 13445577890 in words is "thirteen billion, four hundred forty-five million, five hundred seventy-seven thousand, eight hundred ninety".