8942978136 has 16 divisors (see below), whose sum is σ = 22357445400. Its totient is φ = 2980992704.

The previous prime is 8942978123. The next prime is 8942978141. The reversal of 8942978136 is 6318792498.

It is a super-3 number, since 3×8942978136³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186312021 + ... + 186312068.

Almost surely, 2^8942978136 is an apocalyptic number.

It is an amenable number.

8942978136 is an abundant number, since it is smaller than the sum of its proper divisors (13414467264).

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

8942978136 is a wasteful number, since it uses less digits than its factorization.

8942978136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372624098 (or 372624094 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 8942978136 is about 94567.3206557107. The cubic root of 8942978136 is about 2075.6815401705.

The spelling of 8942978136 in words is "eight billion, nine hundred forty-two million, nine hundred seventy-eight thousand, one hundred thirty-six".