401546688654 has 16 divisors (see below), whose sum is σ = 803602005120. Its totient is φ = 133764124920.

The previous prime is 401546688629. The next prime is 401546688671. The reversal of 401546688654 is 456886645104.

It is a super-2 number, since 2×401546688654² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401546688594 and 401546688603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21182562 + ... + 21201509.

It is an arithmetic number, because the mean of its divisors is an integer number (50225125320).

Almost surely, 2^401546688654 is an apocalyptic number.

401546688654 is an abundant number, since it is smaller than the sum of its proper divisors (402055316466).

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

401546688654 is a wasteful number, since it uses less digits than its factorization.

401546688654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42385655.

The product of its (nonzero) digits is 22118400, while the sum is 57.

The spelling of 401546688654 in words is "four hundred one billion, five hundred forty-six million, six hundred eighty-eight thousand, six hundred fifty-four".