401720580846 has 24 divisors (see below), whose sum is σ = 937348022520. Its totient is φ = 123606332496.

The previous prime is 401720580841. The next prime is 401720580923. The reversal of 401720580846 is 648085027104.

401720580846 is a `hidden beast` number, since 4 + 0 + 1 + 7 + 20 + 580 + 8 + 46 = 666.

It is a super-2 number, since 2×401720580846² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401720580841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 858377076 + ... + 858377543.

It is an arithmetic number, because the mean of its divisors is an integer number (39056167605).

Almost surely, 2^401720580846 is an apocalyptic number.

401720580846 is an abundant number, since it is smaller than the sum of its proper divisors (535627441674).

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

401720580846 is a wasteful number, since it uses less digits than its factorization.

401720580846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716754640 (or 1716754637 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 401720580846 in words is "four hundred one billion, seven hundred twenty million, five hundred eighty thousand, eight hundred forty-six".