71027681002 has 4 divisors (see below), whose sum is σ = 106541521506. Its totient is φ = 35513840500.

The previous prime is 71027680939. The next prime is 71027681047. The reversal of 71027681002 is 20018672017.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70889595001 + 138086001 = 266251^2 + 11751^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17756920249 + ... + 17756920252.

Almost surely, 2^71027681002 is an apocalyptic number.

71027681002 is a deficient number, since it is larger than the sum of its proper divisors (35513840504).

71027681002 is a wasteful number, since it uses less digits than its factorization.

71027681002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35513840503.

The product of its (nonzero) digits is 9408, while the sum is 34.

The spelling of 71027681002 in words is "seventy-one billion, twenty-seven million, six hundred eighty-one thousand, two".