19948016418 has 64 divisors (see below), whose sum is σ = 43815772800. Its totient is φ = 6004316160.

The previous prime is 19948016339. The next prime is 19948016441. The reversal of 19948016418 is 81461084991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7691730 + ... + 7694322.

It is an arithmetic number, because the mean of its divisors is an integer number (684621450).

Almost surely, 2^19948016418 is an apocalyptic number.

19948016418 is an abundant number, since it is smaller than the sum of its proper divisors (23867756382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19948016418 is a wasteful number, since it uses less digits than its factorization.

19948016418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 19948016418 in words is "nineteen billion, nine hundred forty-eight million, sixteen thousand, four hundred eighteen".