1641267863123 has 32 divisors (see below), whose sum is σ = 2018943957888. Its totient is φ = 1302140160000.

The previous prime is 1641267863117. The next prime is 1641267863141. The reversal of 1641267863123 is 3213687621461.

It is not a de Polignac number, because 1641267863123 - 2²⁰ = 1641266814547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641267863173) 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, 61695461 + ... + 61722057.

It is an arithmetic number, because the mean of its divisors is an integer number (63091998684).

Almost surely, 2^{1641267863123} is an apocalyptic number.

1641267863123 is a deficient number, since it is larger than the sum of its proper divisors (377676094765).

1641267863123 is a wasteful number, since it uses less digits than its factorization.

1641267863123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35183.

The product of its digits is 1741824, while the sum is 50.

The spelling of 1641267863123 in words is "one trillion, six hundred forty-one billion, two hundred sixty-seven million, eight hundred sixty-three thousand, one hundred twenty-three".