705151154020642 has 16 divisors (see below), whose sum is σ = 1221292720368000. Its totient is φ = 299092094782848.

The previous prime is 705151154020639. The next prime is 705151154020661. The reversal of 705151154020642 is 246020451151507.

It is a happy number.

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, 259628553142 + ... + 259628555857.

It is an arithmetic number, because the mean of its divisors is an integer number (76330795023000).

Almost surely, 2^{705151154020642} is an apocalyptic number.

705151154020642 is a deficient number, since it is larger than the sum of its proper divisors (516141566347358).

705151154020642 is a wasteful number, since it uses less digits than its factorization.

705151154020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519257109105.

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 705151154020642 in words is "seven hundred five trillion, one hundred fifty-one billion, one hundred fifty-four million, twenty thousand, six hundred forty-two".