82536313890 has 32 divisors (see below), whose sum is σ = 198247377600. Its totient is φ = 21991881024.

The previous prime is 82536313889. The next prime is 82536313891. The reversal of 82536313890 is 9831363528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82536313889) and next prime (82536313891).

It is a super-2 number, since 2×82536313890² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82536313891) 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, 1074940 + ... + 1149159.

It is an arithmetic number, because the mean of its divisors is an integer number (6195230550).

Almost surely, 2^82536313890 is an apocalyptic number.

82536313890 is an abundant number, since it is smaller than the sum of its proper divisors (115711063710).

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

82536313890 is a wasteful number, since it uses less digits than its factorization.

82536313890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225346.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 82536313890 in words is "eighty-two billion, five hundred thirty-six million, three hundred thirteen thousand, eight hundred ninety".