254453212642 has 8 divisors (see below), whose sum is σ = 383317930476. Its totient is φ = 126680569152.

The previous prime is 254453212579. The next prime is 254453212661. The reversal of 254453212642 is 246212354452.

It can be written as a sum of positive squares in 2 ways, for example, as 192605999161 + 61847213481 = 438869^2 + 248691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 254453212595 and 254453212604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273018003 + ... + 273018934.

Almost surely, 2^254453212642 is an apocalyptic number.

254453212642 is a deficient number, since it is larger than the sum of its proper divisors (128864717834).

254453212642 is a wasteful number, since it uses less digits than its factorization.

254453212642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546037172.

The product of its digits is 460800, while the sum is 40.

The spelling of 254453212642 in words is "two hundred fifty-four billion, four hundred fifty-three million, two hundred twelve thousand, six hundred forty-two".