102720776072 has 8 divisors (see below), whose sum is σ = 192601455150. Its totient is φ = 51360388032.

The previous prime is 102720776057. The next prime is 102720776111. The reversal of 102720776072 is 270677027201.

It can be written as a sum of positive squares in only one way, i.e., 101514880996 + 1205895076 = 318614^2 + 34726^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 6420048497 + ... + 6420048512.

Almost surely, 2^102720776072 is an apocalyptic number.

It is an amenable number.

102720776072 is a deficient number, since it is larger than the sum of its proper divisors (89880679078).

102720776072 is a wasteful number, since it uses less digits than its factorization.

102720776072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12840097015 (or 12840097011 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 41.

The spelling of 102720776072 in words is "one hundred two billion, seven hundred twenty million, seven hundred seventy-six thousand, seventy-two".