1641797375 has 16 divisors (see below), whose sum is σ = 2077042656. Its totient is φ = 1295438400.

The previous prime is 1641797363. The next prime is 1641797393. The reversal of 1641797375 is 5737971461.

It is not a de Polignac number, because 1641797375 - 2⁴ = 1641797359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80837 + ... + 99086.

It is an arithmetic number, because the mean of its divisors is an integer number (129815166).

Almost surely, 2^1641797375 is an apocalyptic number.

1641797375 is a deficient number, since it is larger than the sum of its proper divisors (435245281).

1641797375 is an equidigital number, since it uses as much as digits as its factorization.

1641797375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180011 (or 180001 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 50.

The square root of 1641797375 is about 40519.0988917572. The cubic root of 1641797375 is about 1179.7043631202.

The spelling of 1641797375 in words is "one billion, six hundred forty-one million, seven hundred ninety-seven thousand, three hundred seventy-five".