1801966463 has 8 divisors (see below), whose sum is σ = 1966101456. Its totient is φ = 1637884800.

The previous prime is 1801966433. The next prime is 1801966477. The reversal of 1801966463 is 3646691081.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1801966463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801966433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97223 + ... + 114263.

It is an arithmetic number, because the mean of its divisors is an integer number (245762682).

Almost surely, 2^1801966463 is an apocalyptic number.

1801966463 is a deficient number, since it is larger than the sum of its proper divisors (164134993).

1801966463 is a wasteful number, since it uses less digits than its factorization.

1801966463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26665.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1801966463 is about 42449.5755338025. The cubic root of 1801966463 is about 1216.8832166079.

The spelling of 1801966463 in words is "one billion, eight hundred one million, nine hundred sixty-six thousand, four hundred sixty-three".