1641430263 has 8 divisors (see below), whose sum is σ = 2387534976. Its totient is φ = 994806200.

The previous prime is 1641430261. The next prime is 1641430279. The reversal of 1641430263 is 3620341461.

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

It is a cyclic number.

It is not a de Polignac number, because 1641430263 - 2¹ = 1641430261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641430263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641430261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24870123 + ... + 24870188.

It is an arithmetic number, because the mean of its divisors is an integer number (298441872).

Almost surely, 2^1641430263 is an apocalyptic number.

1641430263 is a deficient number, since it is larger than the sum of its proper divisors (746104713).

1641430263 is a wasteful number, since it uses less digits than its factorization.

1641430263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49740325.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1641430263 is about 40514.5685278765. The cubic root of 1641430263 is about 1179.6164278044.

The spelling of 1641430263 in words is "one billion, six hundred forty-one million, four hundred thirty thousand, two hundred sixty-three".