13134749820 has 24 divisors (see below), whose sum is σ = 36777299664. Its totient is φ = 3502599936.

The previous prime is 13134749809. The next prime is 13134749869. The reversal of 13134749820 is 2894743131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109456189 + ... + 109456308.

It is an arithmetic number, because the mean of its divisors is an integer number (1532387486).

Almost surely, 2^13134749820 is an apocalyptic number.

13134749820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13134749820 is an abundant number, since it is smaller than the sum of its proper divisors (23642549844).

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

13134749820 is a wasteful number, since it uses less digits than its factorization.

13134749820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218912509 (or 218912507 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 13134749820 in words is "thirteen billion, one hundred thirty-four million, seven hundred forty-nine thousand, eight hundred twenty".