86842908890 has 24 divisors (see below), whose sum is σ = 159011650260. Its totient is φ = 34148384384.

The previous prime is 86842908877. The next prime is 86842908941. The reversal of 86842908890 is 9880924868.

It can be written as a sum of positive squares in 2 ways, for example, as 71212658449 + 15630250441 = 266857^2 + 125021^2 .

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 1212575 + ... + 1282194.

Almost surely, 2^86842908890 is an apocalyptic number.

86842908890 is a deficient number, since it is larger than the sum of its proper divisors (72168741370).

86842908890 is a wasteful number, since it uses less digits than its factorization.

86842908890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494894 (or 2494835 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 86842908890 in words is "eighty-six billion, eight hundred forty-two million, nine hundred eight thousand, eight hundred ninety".