86772681288 has 24 divisors (see below), whose sum is σ = 235009345350. Its totient is φ = 28924227072.

The previous prime is 86772681287. The next prime is 86772681377. The reversal of 86772681288 is 88218627768.

It can be written as a sum of positive squares in only one way, i.e., 57504999204 + 29267682084 = 239802^2 + 171078^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (86772681287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 602587993 + ... + 602588136.

Almost surely, 2^86772681288 is an apocalyptic number.

It is an amenable number.

86772681288 is an abundant number, since it is smaller than the sum of its proper divisors (148236664062).

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

86772681288 is a wasteful number, since it uses less digits than its factorization.

86772681288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205176141 (or 1205176134 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 63.

The spelling of 86772681288 in words is "eighty-six billion, seven hundred seventy-two million, six hundred eighty-one thousand, two hundred eighty-eight".