128037643433722 has 32 divisors (see below), whose sum is σ = 217343082297600. Its totient is φ = 56060715609600.

The previous prime is 128037643433699. The next prime is 128037643433747. The reversal of 128037643433722 is 227334346730821.

It is a super-4 number, since 4×128037643433722⁴ (a number of 58 digits) contains 4444 as substring.

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, 898337647 + ... + 898480162.

It is an arithmetic number, because the mean of its divisors is an integer number (6791971321800).

Almost surely, 2^{128037643433722} is an apocalyptic number.

128037643433722 is a deficient number, since it is larger than the sum of its proper divisors (89305438863878).

128037643433722 is a wasteful number, since it uses less digits than its factorization.

128037643433722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796817942.

The product of its (nonzero) digits is 24385536, while the sum is 55.

The spelling of 128037643433722 in words is "one hundred twenty-eight trillion, thirty-seven billion, six hundred forty-three million, four hundred thirty-three thousand, seven hundred twenty-two".