77045716426216 has 64 divisors (see below), whose sum is σ = 157604123476800. Its totient is φ = 35161984852992.

The previous prime is 77045716426171. The next prime is 77045716426223. The reversal of 77045716426216 is 61262461754077.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23391906 + ... + 26481553.

It is an arithmetic number, because the mean of its divisors is an integer number (2462564429325).

Almost surely, 2^{77045716426216} is an apocalyptic number.

It is an amenable number.

77045716426216 is an abundant number, since it is smaller than the sum of its proper divisors (80558407050584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77045716426216 is a wasteful number, since it uses less digits than its factorization.

77045716426216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49873826 (or 49873822 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 77045716426216 in words is "seventy-seven trillion, forty-five billion, seven hundred sixteen million, four hundred twenty-six thousand, two hundred sixteen".