401513103685 has 32 divisors (see below), whose sum is σ = 521254402560. Its totient is φ = 295868464128.

The previous prime is 401513103683. The next prime is 401513103713. The reversal of 401513103685 is 586301315104.

It is a cyclic number.

It is not a de Polignac number, because 401513103685 - 2¹ = 401513103683 is a prime.

It is a super-2 number, since 2×401513103685² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401513103683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4961709 + ... + 5041981.

It is an arithmetic number, because the mean of its divisors is an integer number (16289200080).

Almost surely, 2^401513103685 is an apocalyptic number.

It is an amenable number.

401513103685 is a deficient number, since it is larger than the sum of its proper divisors (119741298875).

401513103685 is a wasteful number, since it uses less digits than its factorization.

401513103685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81757.

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 401513103685 its reverse (586301315104), we get a palindrome (987814418789).

The spelling of 401513103685 in words is "four hundred one billion, five hundred thirteen million, one hundred three thousand, six hundred eighty-five".