81002876106 has 16 divisors (see below), whose sum is σ = 162278956224. Its totient is φ = 26955424704.

The previous prime is 81002876099. The next prime is 81002876107. The reversal of 81002876106 is 60167820018.

It is a super-2 number, since 2×81002876106² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (81002876107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11379646 + ... + 11386761.

It is an arithmetic number, because the mean of its divisors is an integer number (10142434764).

Almost surely, 2^81002876106 is an apocalyptic number.

81002876106 is an abundant number, since it is smaller than the sum of its proper divisors (81276080118).

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

81002876106 is a wasteful number, since it uses less digits than its factorization.

81002876106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22767005.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 81002876106 in words is "eighty-one billion, two million, eight hundred seventy-six thousand, one hundred six".