401814497648 has 80 divisors (see below), whose sum is σ = 798008656320. Its totient is φ = 195926335488.

The previous prime is 401814497647. The next prime is 401814497687. The reversal of 401814497648 is 846794418104.

It is a super-2 number, since 2×401814497648² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401814497593 and 401814497602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401814497647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111088736 + ... + 111092352.

It is an arithmetic number, because the mean of its divisors is an integer number (9975108204).

Almost surely, 2^401814497648 is an apocalyptic number.

It is an amenable number.

401814497648 is a deficient number, since it is larger than the sum of its proper divisors (396194158672).

401814497648 is a wasteful number, since it uses less digits than its factorization.

401814497648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4428 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 401814497648 in words is "four hundred one billion, eight hundred fourteen million, four hundred ninety-seven thousand, six hundred forty-eight".