154274681484 has 192 divisors, whose sum is σ = 503081671680. Its totient is φ = 39716490240.

The previous prime is 154274681359. The next prime is 154274681489. The reversal of 154274681484 is 484186472451.

154274681484 is a `hidden beast` number, since 1 + 5 + 42 + 7 + 46 + 81 + 484 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 154274681484.

It is not an unprimeable number, because it can be changed into a prime (154274681489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 857622 + ... + 1021794.

It is an arithmetic number, because the mean of its divisors is an integer number (2620217040).

Almost surely, 2^154274681484 is an apocalyptic number.

154274681484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154274681484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251540835840).

154274681484 is an abundant number, since it is smaller than the sum of its proper divisors (348806990196).

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

154274681484 is a wasteful number, since it uses less digits than its factorization.

154274681484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164317 (or 164309 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 154274681484 in words is "one hundred fifty-four billion, two hundred seventy-four million, six hundred eighty-one thousand, four hundred eighty-four".