3873720428913 has 32 divisors (see below), whose sum is σ = 5226799767552. Its totient is φ = 2551670264000.

The previous prime is 3873720428827. The next prime is 3873720428933. The reversal of 3873720428913 is 3198240273783.

It is a cyclic number.

It is not a de Polignac number, because 3873720428913 - 2⁸ = 3873720428657 is a prime.

It is a super-2 number, since 2×3873720428913² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3873720428933) 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, 436864906 + ... + 436873772.

It is an arithmetic number, because the mean of its divisors is an integer number (163337492736).

Almost surely, 2^{3873720428913} is an apocalyptic number.

It is an amenable number.

3873720428913 is a deficient number, since it is larger than the sum of its proper divisors (1353079338639).

3873720428913 is a wasteful number, since it uses less digits than its factorization.

3873720428913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11765.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 3873720428913 in words is "three trillion, eight hundred seventy-three billion, seven hundred twenty million, four hundred twenty-eight thousand, nine hundred thirteen".