1641539276379 has 16 divisors (see below), whose sum is σ = 2435148298240. Its totient is φ = 1092902301000.

The previous prime is 1641539276329. The next prime is 1641539276411. The reversal of 1641539276379 is 9736729351461.

It is a happy number.

1641539276379 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 539 + 27 + 6 + 3 + 79 = 666.

It is not a de Polignac number, because 1641539276379 - 2⁸ = 1641539276123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641539276329) 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, 40457587 + ... + 40498140.

It is an arithmetic number, because the mean of its divisors is an integer number (152196768640).

Almost surely, 2^{1641539276379} is an apocalyptic number.

1641539276379 is a deficient number, since it is larger than the sum of its proper divisors (793609021861).

1641539276379 is an equidigital number, since it uses as much as digits as its factorization.

1641539276379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80956487 (or 80956481 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 1641539276379 in words is "one trillion, six hundred forty-one billion, five hundred thirty-nine million, two hundred seventy-six thousand, three hundred seventy-nine".