3961562215267 has 4 divisors (see below), whose sum is σ = 4006074150360. Its totient is φ = 3917050280176.

The previous prime is 3961562215243. The next prime is 3961562215283. The reversal of 3961562215267 is 7625122651693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3961562215267 - 2³⁹ = 3411806401379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3961562215207) 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, 22255967413 + ... + 22255967590.

It is an arithmetic number, because the mean of its divisors is an integer number (1001518537590).

Almost surely, 2^{3961562215267} is an apocalyptic number.

3961562215267 is a deficient number, since it is larger than the sum of its proper divisors (44511935093).

3961562215267 is an equidigital number, since it uses as much as digits as its factorization.

3961562215267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44511935092.

The product of its digits is 8164800, while the sum is 55.

The spelling of 3961562215267 in words is "three trillion, nine hundred sixty-one billion, five hundred sixty-two million, two hundred fifteen thousand, two hundred sixty-seven".