401546688653 has 8 divisors (see below), whose sum is σ = 444589007520. Its totient is φ = 359594048880.

The previous prime is 401546688629. The next prime is 401546688671. The reversal of 401546688653 is 356886645104.

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

It is not a de Polignac number, because 401546688653 - 2¹⁴ = 401546672269 is a prime.

It is a super-2 number, since 2×401546688653² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401546688623) 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, 272418998 + ... + 272420471.

It is an arithmetic number, because the mean of its divisors is an integer number (55573625940).

Almost surely, 2^401546688653 is an apocalyptic number.

It is an amenable number.

401546688653 is a deficient number, since it is larger than the sum of its proper divisors (43042318867).

401546688653 is a wasteful number, since it uses less digits than its factorization.

401546688653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544839547.

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 401546688653 in words is "four hundred one billion, five hundred forty-six million, six hundred eighty-eight thousand, six hundred fifty-three".