19440099154 has 32 divisors (see below), whose sum is σ = 33968563200. Its totient is φ = 8171450640.

The previous prime is 19440099139. The next prime is 19440099179. The reversal of 19440099154 is 45199004491.

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 15 ways as a sum of consecutive naturals, for example, 335809 + ... + 389419.

It is an arithmetic number, because the mean of its divisors is an integer number (1061517600).

Almost surely, 2^19440099154 is an apocalyptic number.

19440099154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19440099154 is a deficient number, since it is larger than the sum of its proper divisors (14528464046).

19440099154 is a wasteful number, since it uses less digits than its factorization.

19440099154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54118.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 19440099154 in words is "nineteen billion, four hundred forty million, ninety-nine thousand, one hundred fifty-four".