1641288875 has 32 divisors (see below), whose sum is σ = 2191675200. Its totient is φ = 1223424000.

The previous prime is 1641288871. The next prime is 1641288877. The reversal of 1641288875 is 5788821461.

It is not a de Polignac number, because 1641288875 - 2² = 1641288871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1641288871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139211 + ... + 150539.

It is an arithmetic number, because the mean of its divisors is an integer number (68489850).

Almost surely, 2^1641288875 is an apocalyptic number.

1641288875 is a deficient number, since it is larger than the sum of its proper divisors (550386325).

1641288875 is a wasteful number, since it uses less digits than its factorization.

1641288875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11424 (or 11414 counting only the distinct ones).

The product of its digits is 860160, while the sum is 50.

The square root of 1641288875 is about 40512.8235871063. The cubic root of 1641288875 is about 1179.5825572627.

The spelling of 1641288875 in words is "one billion, six hundred forty-one million, two hundred eighty-eight thousand, eight hundred seventy-five".