147766778071448 has 128 divisors (see below), whose sum is σ = 288325670307840. Its totient is φ = 70948785600000.

The previous prime is 147766778071447. The next prime is 147766778071457. The reversal of 147766778071448 is 844170877667741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147766778071447) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 19049471186 + ... + 19049478942.

It is an arithmetic number, because the mean of its divisors is an integer number (2252544299280).

Almost surely, 2^{147766778071448} is an apocalyptic number.

It is an amenable number.

147766778071448 is a deficient number, since it is larger than the sum of its proper divisors (140558892236392).

147766778071448 is a wasteful number, since it uses less digits than its factorization.

147766778071448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11689 (or 11685 counting only the distinct ones).

The product of its (nonzero) digits is 2478292992, while the sum is 77.

The spelling of 147766778071448 in words is "one hundred forty-seven trillion, seven hundred sixty-six billion, seven hundred seventy-eight million, seventy-one thousand, four hundred forty-eight".