1463978889 has 48 divisors (see below), whose sum is σ = 2245052160. Its totient is φ = 918086400.

The previous prime is 1463978869. The next prime is 1463978933. The reversal of 1463978889 is 9888793641.

1463978889 is a `hidden beast` number, since 1 + 463 + 97 + 8 + 8 + 89 = 666.

It is not a de Polignac number, because 1463978889 - 2²⁴ = 1447201673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1463978869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1392414 + ... + 1393464.

It is an arithmetic number, because the mean of its divisors is an integer number (46771920).

Almost surely, 2^1463978889 is an apocalyptic number.

It is an amenable number.

1463978889 is a deficient number, since it is larger than the sum of its proper divisors (781073271).

1463978889 is a wasteful number, since it uses less digits than its factorization.

1463978889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1227 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 1463978889 is about 38261.9770660116. The cubic root of 1463978889 is about 1135.4768162270.

It can be divided in two parts, 14639 and 78889, that added together give a triangular number (93528 = T₄₃₂).

The spelling of 1463978889 in words is "one billion, four hundred sixty-three million, nine hundred seventy-eight thousand, eight hundred eighty-nine".