3867720637241 has 4 divisors (see below), whose sum is σ = 3916679126400. Its totient is φ = 3818762148084.

The previous prime is 3867720637223. The next prime is 3867720637247. The reversal of 3867720637241 is 1427360277683.

It is a happy number.

3867720637241 is digitally balanced in base 3, 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 3867720637241 - 2²² = 3867716442937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3867720637247) 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, 24479244461 + ... + 24479244618.

It is an arithmetic number, because the mean of its divisors is an integer number (979169781600).

Almost surely, 2^{3867720637241} is an apocalyptic number.

It is an amenable number.

3867720637241 is a deficient number, since it is larger than the sum of its proper divisors (48958489159).

3867720637241 is an equidigital number, since it uses as much as digits as its factorization.

3867720637241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48958489158.

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 3867720637241 in words is "three trillion, eight hundred sixty-seven billion, seven hundred twenty million, six hundred thirty-seven thousand, two hundred forty-one".