82145457702 has 96 divisors (see below), whose sum is σ = 221959745280. Its totient is φ = 21330682560.

The previous prime is 82145457677. The next prime is 82145457703. The reversal of 82145457702 is 20775454128.

82145457702 is a `hidden beast` number, since 8 + 21 + 4 + 54 + 577 + 0 + 2 = 666.

It is a super-2 number, since 2×82145457702² (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 (82145457703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7871424 + ... + 7881852.

It is an arithmetic number, because the mean of its divisors is an integer number (2312080680).

Almost surely, 2^82145457702 is an apocalyptic number.

82145457702 is an abundant number, since it is smaller than the sum of its proper divisors (139814287578).

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

82145457702 is a wasteful number, since it uses less digits than its factorization.

82145457702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16138 (or 16135 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The spelling of 82145457702 in words is "eighty-two billion, one hundred forty-five million, four hundred fifty-seven thousand, seven hundred two".