1638069596427 has 16 divisors (see below), whose sum is σ = 2382747702912. Its totient is φ = 992727361920.

The previous prime is 1638069596417. The next prime is 1638069596437. The reversal of 1638069596427 is 7246959608361.

It is an interprime number because it is at equal distance from previous prime (1638069596417) and next prime (1638069596437).

It is not a de Polignac number, because 1638069596427 - 2³⁰ = 1636995854603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1638069596417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253053 + ... + 1827614.

It is an arithmetic number, because the mean of its divisors is an integer number (148921731432).

It is a 1-persistent number, because it is pandigital, but 2⋅1638069596427 = 3276139192854 is not.

Almost surely, 2^{1638069596427} is an apocalyptic number.

1638069596427 is a deficient number, since it is larger than the sum of its proper divisors (744678106485).

1638069596427 is a wasteful number, since it uses less digits than its factorization.

1638069596427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104538.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 1638069596427 in words is "one trillion, six hundred thirty-eight billion, sixty-nine million, five hundred ninety-six thousand, four hundred twenty-seven".