868155896 has 16 divisors (see below), whose sum is σ = 1665648600. Its totient is φ = 423982944.

The previous prime is 868155863. The next prime is 868155943. The reversal of 868155896 is 698551868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261511 + ... + 1262198.

Almost surely, 2^868155896 is an apocalyptic number.

868155896 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

868155896 is a deficient number, since it is larger than the sum of its proper divisors (797492704).

868155896 is a wasteful number, since it uses less digits than its factorization.

868155896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523758 (or 2523754 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 56.

The square root of 868155896 is about 29464.4853340424. The cubic root of 868155896 is about 953.9652896085.

The spelling of 868155896 in words is "eight hundred sixty-eight million, one hundred fifty-five thousand, eight hundred ninety-six".