3874451361639 has 32 divisors (see below), whose sum is σ = 5380585497600. Its totient is φ = 2476866470400.

The previous prime is 3874451361629. The next prime is 3874451361653. The reversal of 3874451361639 is 9361631544783.

3874451361639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3874451361639 - 2⁷ = 3874451361511 is a prime.

It is a super-2 number, since 2×3874451361639² (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 (3874451361619) 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, 68717742 + ... + 68774100.

It is an arithmetic number, because the mean of its divisors is an integer number (168143296800).

Almost surely, 2^{3874451361639} is an apocalyptic number.

3874451361639 is a deficient number, since it is larger than the sum of its proper divisors (1506134135961).

3874451361639 is a wasteful number, since it uses less digits than its factorization.

3874451361639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61775.

The product of its digits is 39191040, while the sum is 60.

The spelling of 3874451361639 in words is "three trillion, eight hundred seventy-four billion, four hundred fifty-one million, three hundred sixty-one thousand, six hundred thirty-nine".