2978989869268 has 12 divisors (see below), whose sum is σ = 5957979738592. Its totient is φ = 1276709943960.

The previous prime is 2978989869263. The next prime is 2978989869277. The reversal of 2978989869268 is 8629689898792.

It is a happy number.

2978989869268 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978989869263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53196247638 + ... + 53196247693.

Almost surely, 2^{2978989869268} is an apocalyptic number.

2978989869268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2978989869268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2978989869268 is a wasteful number, since it uses less digits than its factorization.

2978989869268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106392495342 (or 106392495340 counting only the distinct ones).

The product of its digits is 27088846848, while the sum is 91.

The spelling of 2978989869268 in words is "two trillion, nine hundred seventy-eight billion, nine hundred eighty-nine million, eight hundred sixty-nine thousand, two hundred sixty-eight".