13730071992 has 128 divisors (see below), whose sum is σ = 44470003200. Its totient is φ = 3430522368.

The previous prime is 13730071991. The next prime is 13730072003. The reversal of 13730071992 is 29917003731.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13730071991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123943 + ... + 206934.

It is an arithmetic number, because the mean of its divisors is an integer number (347421900).

Almost surely, 2^13730071992 is an apocalyptic number.

13730071992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13730071992 is an abundant number, since it is smaller than the sum of its proper divisors (30739931208).

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

13730071992 is a wasteful number, since it uses less digits than its factorization.

13730071992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330925 (or 330921 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 42.

The spelling of 13730071992 in words is "thirteen billion, seven hundred thirty million, seventy-one thousand, nine hundred ninety-two".