13431688350 has 48 divisors (see below), whose sum is σ = 34758882432. Its totient is φ = 3426052960.

The previous prime is 13431688349. The next prime is 13431688367. The reversal of 13431688350 is 5388613431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1943172 + ... + 1950071.

It is an arithmetic number, because the mean of its divisors is an integer number (724143384).

Almost surely, 2^13431688350 is an apocalyptic number.

13431688350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13431688350 is an abundant number, since it is smaller than the sum of its proper divisors (21327194082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431688350 is a wasteful number, since it uses less digits than its factorization.

13431688350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893281 (or 3893276 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 13431688350 in words is "thirteen billion, four hundred thirty-one million, six hundred eighty-eight thousand, three hundred fifty".