16734878463 has 8 divisors (see below), whose sum is σ = 23487548800. Its totient is φ = 10569396888.

The previous prime is 16734878443. The next prime is 16734878467. The reversal of 16734878463 is 36487843761.

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

It is not a de Polignac number, because 16734878463 - 2¹⁸ = 16734616319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 293594359 = 16734878463 / (1 + 6 + 7 + 3 + 4 + 8 + 7 + 8 + 4 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16734878467) 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, 146797123 + ... + 146797236.

It is an arithmetic number, because the mean of its divisors is an integer number (2935943600).

Almost surely, 2^16734878463 is an apocalyptic number.

16734878463 is a deficient number, since it is larger than the sum of its proper divisors (6752670337).

16734878463 is a wasteful number, since it uses less digits than its factorization.

16734878463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293594381.

The product of its digits is 16257024, while the sum is 57.

The spelling of 16734878463 in words is "sixteen billion, seven hundred thirty-four million, eight hundred seventy-eight thousand, four hundred sixty-three".