3797389812981 has 8 divisors (see below), whose sum is σ = 5063474021760. Its totient is φ = 2531449406432.

The previous prime is 3797389812943. The next prime is 3797389812989. The reversal of 3797389812981 is 1892189837973.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3797389812981 is a prime.

It is a super-2 number, since 2×3797389812981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3797389812989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35888925 + ... + 35994578.

It is an arithmetic number, because the mean of its divisors is an integer number (632934252720).

Almost surely, 2^{3797389812981} is an apocalyptic number.

It is an amenable number.

3797389812981 is a deficient number, since it is larger than the sum of its proper divisors (1266084208779).

3797389812981 is a wasteful number, since it uses less digits than its factorization.

3797389812981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71901115.

The product of its digits is 329204736, while the sum is 75.

The spelling of 3797389812981 in words is "three trillion, seven hundred ninety-seven billion, three hundred eighty-nine million, eight hundred twelve thousand, nine hundred eighty-one".