1809406492154 has 16 divisors (see below), whose sum is σ = 2723050907808. Its totient is φ = 901723074192.

The previous prime is 1809406492133. The next prime is 1809406492189. The reversal of 1809406492154 is 4512946049081.

It is a junction number, because it is equal to n+sod(n) for n = 1809406492096 and 1809406492105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31842512 + ... + 31899284.

It is an arithmetic number, because the mean of its divisors is an integer number (170190681738).

Almost surely, 2^{1809406492154} is an apocalyptic number.

1809406492154 is a deficient number, since it is larger than the sum of its proper divisors (913644415654).

1809406492154 is a wasteful number, since it uses less digits than its factorization.

1809406492154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108989.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 1809406492154 in words is "one trillion, eight hundred nine billion, four hundred six million, four hundred ninety-two thousand, one hundred fifty-four".