254344253215445 has 16 divisors (see below), whose sum is σ = 306983209124592. Its totient is φ = 202295377359360.

The previous prime is 254344253215433. The next prime is 254344253215511. The reversal of 254344253215445 is 544512352443452.

It can be written as a sum of positive squares in 8 ways, for example, as 35545515544036 + 218798737671409 = 5962006^2 + 14791847^2 .

It is not a de Polignac number, because 254344253215445 - 2²² = 254344249021141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42899465 + ... + 48467025.

It is an arithmetic number, because the mean of its divisors is an integer number (19186450570287).

Almost surely, 2^{254344253215445} is an apocalyptic number.

It is an amenable number.

254344253215445 is a deficient number, since it is larger than the sum of its proper divisors (52638955909147).

254344253215445 is a wasteful number, since it uses less digits than its factorization.

254344253215445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620552.

The product of its digits is 46080000, while the sum is 53.

The spelling of 254344253215445 in words is "two hundred fifty-four trillion, three hundred forty-four billion, two hundred fifty-three million, two hundred fifteen thousand, four hundred forty-five".