1948078049566 has 16 divisors (see below), whose sum is σ = 3218713250688. Its totient is φ = 876893031000.

The previous prime is 1948078049537. The next prime is 1948078049587. The reversal of 1948078049566 is 6659408708491.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429847260 + ... + 429851791.

It is an arithmetic number, because the mean of its divisors is an integer number (201169578168).

Almost surely, 2^{1948078049566} is an apocalyptic number.

1948078049566 is a deficient number, since it is larger than the sum of its proper divisors (1270635201122).

1948078049566 is a wasteful number, since it uses less digits than its factorization.

1948078049566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859699167.

The product of its (nonzero) digits is 104509440, while the sum is 67.

The spelling of 1948078049566 in words is "one trillion, nine hundred forty-eight billion, seventy-eight million, forty-nine thousand, five hundred sixty-six".