3870635566601 has 4 divisors (see below), whose sum is σ = 3919630953600. Its totient is φ = 3821640179604.

The previous prime is 3870635566561. The next prime is 3870635566621. The reversal of 3870635566601 is 1066655360783.

It is a happy number.

3870635566601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3870635566601 - 2²² = 3870631372297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870635566621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24497693381 + ... + 24497693538.

It is an arithmetic number, because the mean of its divisors is an integer number (979907738400).

Almost surely, 2^{3870635566601} is an apocalyptic number.

It is an amenable number.

3870635566601 is a deficient number, since it is larger than the sum of its proper divisors (48995386999).

3870635566601 is an equidigital number, since it uses as much as digits as its factorization.

3870635566601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48995386998.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 3870635566601 in words is "three trillion, eight hundred seventy billion, six hundred thirty-five million, five hundred sixty-six thousand, six hundred one".