77963708446 has 8 divisors (see below), whose sum is σ = 125941375224. Its totient is φ = 35983250040.

The previous prime is 77963708437. The next prime is 77963708479. The reversal of 77963708446 is 64480736977.

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

It is a congruent number.

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, 1499302060 + ... + 1499302111.

It is an arithmetic number, because the mean of its divisors is an integer number (15742671903).

Almost surely, 2^77963708446 is an apocalyptic number.

77963708446 is a deficient number, since it is larger than the sum of its proper divisors (47977666778).

77963708446 is a wasteful number, since it uses less digits than its factorization.

77963708446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998604186.

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 77963708446 in words is "seventy-seven billion, nine hundred sixty-three million, seven hundred eight thousand, four hundred forty-six".