3897720277983 has 48 divisors (see below), whose sum is σ = 6642216861696. Its totient is φ = 2155315599360.

The previous prime is 3897720277967. The next prime is 3897720278003.

3897720277983 is a `hidden beast` number, since 389 + 77 + 20 + 2 + 77 + 98 + 3 = 666.

3897720277983 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3897720277983 - 2⁴ = 3897720277967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897720277183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56459935 + ... + 56528927.

It is an arithmetic number, because the mean of its divisors is an integer number (138379517952).

Almost surely, 2^{3897720277983} is an apocalyptic number.

3897720277983 is a deficient number, since it is larger than the sum of its proper divisors (2744496583713).

3897720277983 is a wasteful number, since it uses less digits than its factorization.

3897720277983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97964 (or 97961 counting only the distinct ones).

The product of its (nonzero) digits is 448084224, while the sum is 72.

The spelling of 3897720277983 in words is "three trillion, eight hundred ninety-seven billion, seven hundred twenty million, two hundred seventy-seven thousand, nine hundred eighty-three".