1641913292387 has 12 divisors (see below), whose sum is σ = 1749073180536. Its totient is φ = 1540959413760.

The previous prime is 1641913292377. The next prime is 1641913292401. The reversal of 1641913292387 is 7832923191461.

It is a happy number.

It is not a de Polignac number, because 1641913292387 - 2⁶ = 1641913292323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641913292377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21214814 + ... + 21292067.

It is an arithmetic number, because the mean of its divisors is an integer number (145756098378).

Almost surely, 2^{1641913292387} is an apocalyptic number.

1641913292387 is a deficient number, since it is larger than the sum of its proper divisors (107159888149).

1641913292387 is a wasteful number, since it uses less digits than its factorization.

1641913292387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42507026 (or 42507007 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 56.

The spelling of 1641913292387 in words is "one trillion, six hundred forty-one billion, nine hundred thirteen million, two hundred ninety-two thousand, three hundred eighty-seven".