4001421386976 has 96 divisors (see below), whose sum is σ = 11803524042240. Its totient is φ = 1177675851264.

The previous prime is 4001421386969. The next prime is 4001421386981. The reversal of 4001421386976 is 6796831241004.

It is a happy number.

4001421386976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×4001421386976² (a number of 26 digits) contains 22 as substring.

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, 69672756 + ... + 69730163.

It is an arithmetic number, because the mean of its divisors is an integer number (122953375440).

Almost surely, 2^{4001421386976} is an apocalyptic number.

4001421386976 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

4001421386976 is an abundant number, since it is smaller than the sum of its proper divisors (7802102655264).

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

4001421386976 is a wasteful number, since it uses less digits than its factorization.

4001421386976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139402968 (or 139402960 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 4001421386976 in words is "four trillion, one billion, four hundred twenty-one million, three hundred eighty-six thousand, nine hundred seventy-six".