13890803493 has 16 divisors (see below), whose sum is σ = 21235009536. Its totient is φ = 7912075440.

The previous prime is 13890803489. The next prime is 13890803497. The reversal of 13890803493 is 39430809831.

It is an interprime number because it is at equal distance from previous prime (13890803489) and next prime (13890803497).

It is not a de Polignac number, because 13890803493 - 2² = 13890803489 is a prime.

It is a super-2 number, since 2×13890803493² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890803497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056921 + ... + 1069982.

It is an arithmetic number, because the mean of its divisors is an integer number (1327188096).

Almost surely, 2^13890803493 is an apocalyptic number.

It is an amenable number.

13890803493 is a deficient number, since it is larger than the sum of its proper divisors (7344206043).

13890803493 is a wasteful number, since it uses less digits than its factorization.

13890803493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127224.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 13890803493 in words is "thirteen billion, eight hundred ninety million, eight hundred three thousand, four hundred ninety-three".