77063406242 has 16 divisors (see below), whose sum is σ = 117073373760. Its totient is φ = 38039627472.

The previous prime is 77063406229. The next prime is 77063406247. The reversal of 77063406242 is 24260436077.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77063406242.

It is not an unprimeable number, because it can be changed into a prime (77063406247) 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, 58859 + ... + 396977.

It is an arithmetic number, because the mean of its divisors is an integer number (7317085860).

Almost surely, 2^77063406242 is an apocalyptic number.

77063406242 is a deficient number, since it is larger than the sum of its proper divisors (40009967518).

77063406242 is a wasteful number, since it uses less digits than its factorization.

77063406242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339577.

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 77063406242 in words is "seventy-seven billion, sixty-three million, four hundred six thousand, two hundred forty-two".