82881957437 has 16 divisors (see below), whose sum is σ = 89937993600. Its totient is φ = 76069916160.

The previous prime is 82881957421. The next prime is 82881957439. The reversal of 82881957437 is 73475918828.

It is a cyclic number.

It is not a de Polignac number, because 82881957437 - 2⁴ = 82881957421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82881957437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82881957439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1604864 + ... + 1655702.

It is an arithmetic number, because the mean of its divisors is an integer number (5621124600).

Almost surely, 2^82881957437 is an apocalyptic number.

It is an amenable number.

82881957437 is a deficient number, since it is larger than the sum of its proper divisors (7056036163).

82881957437 is a wasteful number, since it uses less digits than its factorization.

82881957437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53236.

The product of its digits is 27095040, while the sum is 62.

The spelling of 82881957437 in words is "eighty-two billion, eight hundred eighty-one million, nine hundred fifty-seven thousand, four hundred thirty-seven".