154509954418 has 32 divisors (see below), whose sum is σ = 245781665280. Its totient is φ = 72720218880.

The previous prime is 154509954383. The next prime is 154509954419. The reversal of 154509954418 is 814459905451.

It is not an unprimeable number, because it can be changed into a prime (154509954419) 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, 9486730 + ... + 9503002.

It is an arithmetic number, because the mean of its divisors is an integer number (7680677040).

Almost surely, 2^154509954418 is an apocalyptic number.

154509954418 is a deficient number, since it is larger than the sum of its proper divisors (91271710862).

154509954418 is a wasteful number, since it uses less digits than its factorization.

154509954418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20482.

The product of its (nonzero) digits is 5184000, while the sum is 55.

The spelling of 154509954418 in words is "one hundred fifty-four billion, five hundred nine million, nine hundred fifty-four thousand, four hundred eighteen".