4005139650672 has 80 divisors (see below), whose sum is σ = 10360095473952. Its totient is φ = 1333307289600.

The previous prime is 4005139650667. The next prime is 4005139650689. The reversal of 4005139650672 is 2760569315004.

It is a super-2 number, since 2×4005139650672² (a number of 26 digits) contains 22 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, 265215922 + ... + 265231022.

Almost surely, 2^{4005139650672} is an apocalyptic number.

It is an amenable number.

4005139650672 is an abundant number, since it is smaller than the sum of its proper divisors (6354955823280).

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

4005139650672 is a wasteful number, since it uses less digits than its factorization.

4005139650672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21946 (or 21940 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 4005139650672 in words is "four trillion, five billion, one hundred thirty-nine million, six hundred fifty thousand, six hundred seventy-two".