868161542602 has 4 divisors (see below), whose sum is σ = 1302242313906. Its totient is φ = 434080771300.

The previous prime is 868161542597. The next prime is 868161542617. The reversal of 868161542602 is 206245161868.

868161542602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 794503039801 + 73658502801 = 891349^2 + 271401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217040385649 + ... + 217040385652.

Almost surely, 2^868161542602 is an apocalyptic number.

868161542602 is a deficient number, since it is larger than the sum of its proper divisors (434080771304).

868161542602 is a wasteful number, since it uses less digits than its factorization.

868161542602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434080771303.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 868161542602 in words is "eight hundred sixty-eight billion, one hundred sixty-one million, five hundred forty-two thousand, six hundred two".