3984626338401 has 4 divisors (see below), whose sum is σ = 5312835117872. Its totient is φ = 2656417558932.

The previous prime is 3984626338337. The next prime is 3984626338457. The reversal of 3984626338401 is 1048336264893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3984626338401 - 2⁶ = 3984626338337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984626338001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664104389731 + ... + 664104389736.

It is an arithmetic number, because the mean of its divisors is an integer number (1328208779468).

Almost surely, 2^{3984626338401} is an apocalyptic number.

It is an amenable number.

3984626338401 is a deficient number, since it is larger than the sum of its proper divisors (1328208779471).

3984626338401 is a wasteful number, since it uses less digits than its factorization.

3984626338401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328208779470.

The product of its (nonzero) digits is 17915904, while the sum is 57.

The spelling of 3984626338401 in words is "three trillion, nine hundred eighty-four billion, six hundred twenty-six million, three hundred thirty-eight thousand, four hundred one".