77943504514 has 16 divisors (see below), whose sum is σ = 117974320128. Its totient is φ = 38619452592.

The previous prime is 77943504409. The next prime is 77943504517. The reversal of 77943504514 is 41540534977.

It is not an unprimeable number, because it can be changed into a prime (77943504517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36789 + ... + 396535.

It is an arithmetic number, because the mean of its divisors is an integer number (7373395008).

Almost surely, 2^77943504514 is an apocalyptic number.

77943504514 is a deficient number, since it is larger than the sum of its proper divisors (40030815614).

77943504514 is a wasteful number, since it uses less digits than its factorization.

77943504514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360729.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 77943504514 in words is "seventy-seven billion, nine hundred forty-three million, five hundred four thousand, five hundred fourteen".