82277789141 has 4 divisors (see below), whose sum is σ = 83672328000. Its totient is φ = 80883250284.

The previous prime is 82277789137. The next prime is 82277789177. The reversal of 82277789141 is 14198777228.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82277789141 - 2² = 82277789137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82277789441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697269341 + ... + 697269458.

It is an arithmetic number, because the mean of its divisors is an integer number (20918082000).

Almost surely, 2^82277789141 is an apocalyptic number.

It is an amenable number.

82277789141 is a deficient number, since it is larger than the sum of its proper divisors (1394538859).

82277789141 is a wasteful number, since it uses less digits than its factorization.

82277789141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394538858.

The product of its digits is 3161088, while the sum is 56.

The spelling of 82277789141 in words is "eighty-two billion, two hundred seventy-seven million, seven hundred eighty-nine thousand, one hundred forty-one".