82878033731 has 2 divisors, whose sum is σ = 82878033732. Its totient is φ = 82878033730.

The previous prime is 82878033683. The next prime is 82878033781. The reversal of 82878033731 is 13733087828.

It is an a-pointer prime, because the next prime (82878033781) can be obtained adding 82878033731 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82878033731 - 2¹⁰ = 82878032707 is a prime.

It is a super-2 number, since 2×82878033731² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82878033731.

It is not a weakly prime, because it can be changed into another prime (82878033781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41439016865 + 41439016866.

It is an arithmetic number, because the mean of its divisors is an integer number (41439016866).

Almost surely, 2^82878033731 is an apocalyptic number.

82878033731 is a deficient number, since it is larger than the sum of its proper divisors (1).

82878033731 is an equidigital number, since it uses as much as digits as its factorization.

82878033731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 82878033731 in words is "eighty-two billion, eight hundred seventy-eight million, thirty-three thousand, seven hundred thirty-one".