77773201002 has 32 divisors (see below), whose sum is σ = 197519241600. Its totient is φ = 22220914464.

The previous prime is 77773200997. The next prime is 77773201139. The reversal of 77773201002 is 20010237777.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102874227 + ... + 102874982.

It is an arithmetic number, because the mean of its divisors is an integer number (6172476300).

Almost surely, 2^77773201002 is an apocalyptic number.

77773201002 is an abundant number, since it is smaller than the sum of its proper divisors (119746040598).

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

77773201002 is a wasteful number, since it uses less digits than its factorization.

77773201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205749227 (or 205749221 counting only the distinct ones).

The product of its (nonzero) digits is 28812, while the sum is 36.

Adding to 77773201002 its reverse (20010237777), we get a palindrome (97783438779).

The spelling of 77773201002 in words is "seventy-seven billion, seven hundred seventy-three million, two hundred one thousand, two".