13757000638820 has 12 divisors (see below), whose sum is σ = 28889701341564. Its totient is φ = 5502800255520.

The previous prime is 13757000638813. The next prime is 13757000638841. The reversal of 13757000638820 is 2883600075731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3508960661284 + 10248039977536 = 1873222^2 + 3201256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343925015951 + ... + 343925015990.

It is an arithmetic number, because the mean of its divisors is an integer number (2407475111797).

Almost surely, 2^{13757000638820} is an apocalyptic number.

13757000638820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13757000638820 is an abundant number, since it is smaller than the sum of its proper divisors (15132700702744).

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

13757000638820 is a wasteful number, since it uses less digits than its factorization.

13757000638820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687850031950 (or 687850031948 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 13757000638820 in words is "thirteen trillion, seven hundred fifty-seven billion, six hundred thirty-eight thousand, eight hundred twenty".