77721714421614 has 24 divisors (see below), whose sum is σ = 177260050436040. Its totient is φ = 24543699290928.

The previous prime is 77721714421531. The next prime is 77721714421727. The reversal of 77721714421614 is 41612441712777.

77721714421614 is a `hidden beast` number, since 7 + 7 + 7 + 2 + 1 + 7 + 14 + 4 + 2 + 1 + 614 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113628237117 + ... + 113628237800.

It is an arithmetic number, because the mean of its divisors is an integer number (7385835434835).

Almost surely, 2^{77721714421614} is an apocalyptic number.

77721714421614 is an abundant number, since it is smaller than the sum of its proper divisors (99538336014426).

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

77721714421614 is a wasteful number, since it uses less digits than its factorization.

77721714421614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227256474944 (or 227256474941 counting only the distinct ones).

The product of its digits is 3687936, while the sum is 54.

The spelling of 77721714421614 in words is "seventy-seven trillion, seven hundred twenty-one billion, seven hundred fourteen million, four hundred twenty-one thousand, six hundred fourteen".