81525484402262 has 16 divisors (see below), whose sum is σ = 127470749511600. Its totient is φ = 39056694287520.

The previous prime is 81525484402207. The next prime is 81525484402283. The reversal of 81525484402262 is 26220448452518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5364922937 + ... + 5364938132.

It is an arithmetic number, because the mean of its divisors is an integer number (7966921844475).

Almost surely, 2^{81525484402262} is an apocalyptic number.

81525484402262 is a deficient number, since it is larger than the sum of its proper divisors (45945265109338).

81525484402262 is a wasteful number, since it uses less digits than its factorization.

81525484402262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729861231.

The product of its (nonzero) digits is 9830400, while the sum is 53.

The spelling of 81525484402262 in words is "eighty-one trillion, five hundred twenty-five billion, four hundred eighty-four million, four hundred two thousand, two hundred sixty-two".