19461242154 has 32 divisors (see below), whose sum is σ = 40115370240. Its totient is φ = 6290799552.

The previous prime is 19461242153. The next prime is 19461242159. The reversal of 19461242154 is 45124216491.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19461242153) 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, 285829 + ... + 347304.

It is an arithmetic number, because the mean of its divisors is an integer number (1253605320).

Almost surely, 2^19461242154 is an apocalyptic number.

19461242154 is an abundant number, since it is smaller than the sum of its proper divisors (20654128086).

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

19461242154 is a wasteful number, since it uses less digits than its factorization.

19461242154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633294.

The product of its digits is 69120, while the sum is 39.

The spelling of 19461242154 in words is "nineteen billion, four hundred sixty-one million, two hundred forty-two thousand, one hundred fifty-four".