1463978879 has 16 divisors (see below), whose sum is σ = 1640728224. Its totient is φ = 1305715840.

The previous prime is 1463978869. The next prime is 1463978933. The reversal of 1463978879 is 9788793641.

It is not a de Polignac number, because 1463978879 - 2¹⁶ = 1463913343 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 60167 + ... + 80919.

It is an arithmetic number, because the mean of its divisors is an integer number (102545514).

Almost surely, 2^1463978879 is an apocalyptic number.

1463978879 is a deficient number, since it is larger than the sum of its proper divisors (176749345).

1463978879 is an equidigital number, since it uses as much as digits as its factorization.

1463978879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20839 (or 20817 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 62.

The square root of 1463978879 is about 38261.9769353336. The cubic root of 1463978879 is about 1135.4768136417.

The spelling of 1463978879 in words is "one billion, four hundred sixty-three million, nine hundred seventy-eight thousand, eight hundred seventy-nine".