2920317838128 has 60 divisors (see below), whose sum is σ = 8178993365088. Its totient is φ = 972705651840.

The previous prime is 2920317838121. The next prime is 2920317838133. The reversal of 2920317838128 is 8218387130292.

2920317838128 is a `hidden beast` number, since 2 + 92 + 0 + 3 + 178 + 381 + 2 + 8 = 666.

It is a super-2 number, since 2×2920317838128² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2920317838121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7450203 + ... + 7832378.

Almost surely, 2^{2920317838128} is an apocalyptic number.

It is an amenable number.

2920317838128 is an abundant number, since it is smaller than the sum of its proper divisors (5258675526960).

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

2920317838128 is a wasteful number, since it uses less digits than its factorization.

2920317838128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15283922 (or 15283913 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 2920317838128 in words is "two trillion, nine hundred twenty billion, three hundred seventeen million, eight hundred thirty-eight thousand, one hundred twenty-eight".