82777140152 has 32 divisors (see below), whose sum is σ = 177905975520. Its totient is φ = 35370639360.

The previous prime is 82777140151. The next prime is 82777140181. The reversal of 82777140152 is 25104177728.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82777140151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2174249 + ... + 2211992.

It is an arithmetic number, because the mean of its divisors is an integer number (5559561735).

Almost surely, 2^82777140152 is an apocalyptic number.

It is an amenable number.

82777140152 is an abundant number, since it is smaller than the sum of its proper divisors (95128835368).

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

82777140152 is a wasteful number, since it uses less digits than its factorization.

82777140152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386591 (or 4386587 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The spelling of 82777140152 in words is "eighty-two billion, seven hundred seventy-seven million, one hundred forty thousand, one hundred fifty-two".