77805533006 has 16 divisors (see below), whose sum is σ = 120799553040. Its totient is φ = 37540500480.

The previous prime is 77805532999. The next prime is 77805533017. The reversal of 77805533006 is 60033550877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265331 + ... + 475406.

It is an arithmetic number, because the mean of its divisors is an integer number (7549972065).

Almost surely, 2^77805533006 is an apocalyptic number.

77805533006 is a deficient number, since it is larger than the sum of its proper divisors (42994020034).

77805533006 is a wasteful number, since it uses less digits than its factorization.

77805533006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742579.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 77805533006 in words is "seventy-seven billion, eight hundred five million, five hundred thirty-three thousand, six".