19146801394 has 16 divisors (see below), whose sum is σ = 32917687488. Its totient is φ = 8182122192.

The previous prime is 19146801379. The next prime is 19146801397. The reversal of 19146801394 is 49310864191.

It is not an unprimeable number, because it can be changed into a prime (19146801397) 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, 1965789 + ... + 1975504.

It is an arithmetic number, because the mean of its divisors is an integer number (2057355468).

Almost surely, 2^19146801394 is an apocalyptic number.

19146801394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19146801394 is a deficient number, since it is larger than the sum of its proper divisors (13770886094).

19146801394 is a wasteful number, since it uses less digits than its factorization.

19146801394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941649.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 19146801394 in words is "nineteen billion, one hundred forty-six million, eight hundred one thousand, three hundred ninety-four".