13421996700 has 216 divisors, whose sum is σ = 45645172272. Its totient is φ = 3035934720.

The previous prime is 13421996669. The next prime is 13421996741. The reversal of 13421996700 is 769912431.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1421194 + ... + 1430606.

It is an arithmetic number, because the mean of its divisors is an integer number (211320242).

Almost surely, 2^13421996700 is an apocalyptic number.

13421996700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13421996700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22822586136).

13421996700 is an abundant number, since it is smaller than the sum of its proper divisors (32223175572).

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

13421996700 is a wasteful number, since it uses less digits than its factorization.

13421996700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541 (or 9527 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 13421996700 in words is "thirteen billion, four hundred twenty-one million, nine hundred ninety-six thousand, seven hundred".