13721382502 has 16 divisors (see below), whose sum is σ = 21254188032. Its totient is φ = 6636823560.

The previous prime is 13721382497. The next prime is 13721382503. The reversal of 13721382502 is 20528312731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13721382503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125103 + ... + 207589.

It is an arithmetic number, because the mean of its divisors is an integer number (1328386752).

Almost surely, 2^13721382502 is an apocalyptic number.

13721382502 is a deficient number, since it is larger than the sum of its proper divisors (7532805530).

13721382502 is a wasteful number, since it uses less digits than its factorization.

13721382502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85203.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 13721382502 in words is "thirteen billion, seven hundred twenty-one million, three hundred eighty-two thousand, five hundred two".