13056893890 has 8 divisors (see below), whose sum is σ = 23502409020. Its totient is φ = 5222757552.

The previous prime is 13056893887. The next prime is 13056893923. The reversal of 13056893890 is 9839865031.

It can be written as a sum of positive squares in 2 ways, for example, as 12999876289 + 57017601 = 114017^2 + 7551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652844685 + ... + 652844704.

Almost surely, 2^13056893890 is an apocalyptic number.

13056893890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13056893890 is a deficient number, since it is larger than the sum of its proper divisors (10445515130).

13056893890 is a wasteful number, since it uses less digits than its factorization.

13056893890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305689396.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 13056893890 in words is "thirteen billion, fifty-six million, eight hundred ninety-three thousand, eight hundred ninety".