413978731581 has 16 divisors (see below), whose sum is σ = 586033069824. Its totient is φ = 259043579904.

The previous prime is 413978731571. The next prime is 413978731603. The reversal of 413978731581 is 185137879314.

It is not a de Polignac number, because 413978731581 - 2¹⁵ = 413978698813 is a prime.

It is a super-2 number, since 2×413978731581² (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 (413978731501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11040180 + ... + 11077613.

It is an arithmetic number, because the mean of its divisors is an integer number (36627066864).

Almost surely, 2^413978731581 is an apocalyptic number.

It is an amenable number.

413978731581 is a deficient number, since it is larger than the sum of its proper divisors (172054338243).

413978731581 is a wasteful number, since it uses less digits than its factorization.

413978731581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22118180.

The product of its digits is 5080320, while the sum is 57.

The spelling of 413978731581 in words is "four hundred thirteen billion, nine hundred seventy-eight million, seven hundred thirty-one thousand, five hundred eighty-one".