254434249402 has 4 divisors (see below), whose sum is σ = 381651374106. Its totient is φ = 127217124700.

The previous prime is 254434249397. The next prime is 254434249417. The reversal of 254434249402 is 204942434452.

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

It can be written as a sum of positive squares in only one way, i.e., 244976492401 + 9457757001 = 494951^2 + 97251^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63608562349 + ... + 63608562352.

Almost surely, 2^254434249402 is an apocalyptic number.

254434249402 is a deficient number, since it is larger than the sum of its proper divisors (127217124704).

254434249402 is a wasteful number, since it uses less digits than its factorization.

254434249402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127217124703.

The product of its (nonzero) digits is 1105920, while the sum is 43.

The spelling of 254434249402 in words is "two hundred fifty-four billion, four hundred thirty-four million, two hundred forty-nine thousand, four hundred two".