4007781331228 has 12 divisors (see below), whose sum is σ = 7017760057000. Its totient is φ = 2002707029232.

The previous prime is 4007781331207. The next prime is 4007781331231. The reversal of 4007781331228 is 8221331877004.

It is a super-2 number, since 2×4007781331228² (a number of 26 digits) contains 22 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295901478 + ... + 295915021.

Almost surely, 2^{4007781331228} is an apocalyptic number.

It is an amenable number.

4007781331228 is a deficient number, since it is larger than the sum of its proper divisors (3009978725772).

4007781331228 is a wasteful number, since it uses less digits than its factorization.

4007781331228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591818196 (or 591818194 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 4007781331228 in words is "four trillion, seven billion, seven hundred eighty-one million, three hundred thirty-one thousand, two hundred twenty-eight".