13690074850 has 24 divisors (see below), whose sum is σ = 25469301780. Its totient is φ = 5474790720.

The previous prime is 13690074829. The next prime is 13690074859. The reversal of 13690074850 is 5847009631.

It can be written as a sum of positive squares in 6 ways, for example, as 5417990449 + 8272084401 = 73607^2 + 90951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13690074797 and 13690074806.

It is not an unprimeable number, because it can be changed into a prime (13690074859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210864 + ... + 268036.

Almost surely, 2^13690074850 is an apocalyptic number.

13690074850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13690074850 is a deficient number, since it is larger than the sum of its proper divisors (11779226930).

13690074850 is a wasteful number, since it uses less digits than its factorization.

13690074850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61974 (or 61969 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 13690074850 in words is "thirteen billion, six hundred ninety million, seventy-four thousand, eight hundred fifty".