406256621154401 has 8 divisors (see below), whose sum is σ = 428785032635520. Its totient is φ = 383842858078512.

The previous prime is 406256621154359. The next prime is 406256621154421. The reversal of 406256621154401 is 104451126652604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406256621154401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406256621154421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28662094025 + ... + 28662108198.

It is an arithmetic number, because the mean of its divisors is an integer number (53598129079440).

Almost surely, 2^{406256621154401} is an apocalyptic number.

It is an amenable number.

406256621154401 is a deficient number, since it is larger than the sum of its proper divisors (22528411481119).

406256621154401 is a wasteful number, since it uses less digits than its factorization.

406256621154401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57324202615.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 406256621154401 in words is "four hundred six trillion, two hundred fifty-six billion, six hundred twenty-one million, one hundred fifty-four thousand, four hundred one".