3127220383728 has 80 divisors (see below), whose sum is σ = 9718679909120. Its totient is φ = 846465666048.

The previous prime is 3127220383691. The next prime is 3127220383753. The reversal of 3127220383728 is 8273830227213.

It is a super-3 number, since 3×3127220383728³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244920025 + ... + 244932792.

It is an arithmetic number, because the mean of its divisors is an integer number (121483498864).

Almost surely, 2^{3127220383728} is an apocalyptic number.

3127220383728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3127220383728 is an abundant number, since it is smaller than the sum of its proper divisors (6591459525392).

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

3127220383728 is a wasteful number, since it uses less digits than its factorization.

3127220383728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489852854 (or 489852848 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 3127220383728 in words is "three trillion, one hundred twenty-seven billion, two hundred twenty million, three hundred eighty-three thousand, seven hundred twenty-eight".