1641425138642 has 8 divisors (see below), whose sum is σ = 2462282650236. Its totient is φ = 820664255232.

The previous prime is 1641425138597. The next prime is 1641425138659. The reversal of 1641425138642 is 2468315241461.

It can be written as a sum of positive squares in 2 ways, for example, as 1513611023521 + 127814115121 = 1230289^2 + 357511^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24114563 + ... + 24182534.

Almost surely, 2^{1641425138642} is an apocalyptic number.

1641425138642 is a deficient number, since it is larger than the sum of its proper divisors (820857511594).

1641425138642 is a wasteful number, since it uses less digits than its factorization.

1641425138642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48314092.

The product of its digits is 1105920, while the sum is 47.

The spelling of 1641425138642 in words is "one trillion, six hundred forty-one billion, four hundred twenty-five million, one hundred thirty-eight thousand, six hundred forty-two".