72085339092 has 72 divisors (see below), whose sum is σ = 188413374240. Its totient is φ = 21415255680.

The previous prime is 72085339091. The next prime is 72085339097. The reversal of 72085339092 is 29093358027.

It is a happy number.

It is a super-2 number, since 2×72085339092² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72085339091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 554034 + ... + 671657.

It is an arithmetic number, because the mean of its divisors is an integer number (2616852420).

Almost surely, 2^72085339092 is an apocalyptic number.

It is an amenable number.

72085339092 is an abundant number, since it is smaller than the sum of its proper divisors (116328035148).

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

72085339092 is a wasteful number, since it uses less digits than its factorization.

72085339092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225753 (or 1225738 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 72085339092 in words is "seventy-two billion, eighty-five million, three hundred thirty-nine thousand, ninety-two".