13051803601984 has 63 divisors (see below), whose sum is σ = 30128657793237. Its totient is φ = 5593543409664.

The previous prime is 13051803601943. The next prime is 13051803602023. The reversal of 13051803601984 is 48910630815031.

The square root of 13051803601984 is 3612728.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2759718337600 + 10292085264384 = 1661240^2 + 3208128^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 202280512 + ... + 202345024.

Almost surely, 2^{13051803601984} is an apocalyptic number.

13051803601984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13051803601984 is the 3612728-th square number.

It is an amenable number.

13051803601984 is an abundant number, since it is smaller than the sum of its proper divisors (17076854191253).

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

13051803601984 is an frugal number, since it uses more digits than its factorization.

13051803601984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129052 (or 64522 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

Multiplying 13051803601984 by its sum of digits (49), we get a square (639538376497216 = 25289096²).

13051803601984 divided by its sum of digits (49) gives a square (266363338816 = 516104²).

The spelling of 13051803601984 in words is "thirteen trillion, fifty-one billion, eight hundred three million, six hundred one thousand, nine hundred eighty-four".