254128821452 has 24 divisors (see below), whose sum is σ = 486553193280. Its totient is φ = 115180202960.

The previous prime is 254128821409. The next prime is 254128821469.

254128821452 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8307002 + ... + 8337537.

It is an arithmetic number, because the mean of its divisors is an integer number (20273049720).

Almost surely, 2^254128821452 is an apocalyptic number.

254128821452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

254128821452 is a deficient number, since it is larger than the sum of its proper divisors (232424371828).

254128821452 is a wasteful number, since it uses less digits than its factorization.

254128821452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16644901 (or 16644899 counting only the distinct ones).

The product of its digits is 409600, while the sum is 44.

The spelling of 254128821452 in words is "two hundred fifty-four billion, one hundred twenty-eight million, eight hundred twenty-one thousand, four hundred fifty-two".