13945213500 has 48 divisors (see below), whose sum is σ = 40608466080. Its totient is φ = 3718723200.

The previous prime is 13945213463. The next prime is 13945213523. The reversal of 13945213500 is 531254931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4646905 + ... + 4649904.

It is an arithmetic number, because the mean of its divisors is an integer number (846009710).

Almost surely, 2^13945213500 is an apocalyptic number.

13945213500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13945213500 is an abundant number, since it is smaller than the sum of its proper divisors (26663252580).

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

13945213500 is a wasteful number, since it uses less digits than its factorization.

13945213500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296831 (or 9296819 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 13945213500 in words is "thirteen billion, nine hundred forty-five million, two hundred thirteen thousand, five hundred".