254121455420422 has 4 divisors (see below), whose sum is σ = 381182183130636. Its totient is φ = 127060727710210.

The previous prime is 254121455420389. The next prime is 254121455420431. The reversal of 254121455420422 is 224024554121452.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63530363855104 + ... + 63530363855107.

It is an arithmetic number, because the mean of its divisors is an integer number (95295545782659).

Almost surely, 2^{254121455420422} is an apocalyptic number.

254121455420422 is a deficient number, since it is larger than the sum of its proper divisors (127060727710214).

254121455420422 is a wasteful number, since it uses less digits than its factorization.

254121455420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127060727710213.

The product of its (nonzero) digits is 1024000, while the sum is 43.

The spelling of 254121455420422 in words is "two hundred fifty-four trillion, one hundred twenty-one billion, four hundred fifty-five million, four hundred twenty thousand, four hundred twenty-two".