411990040981 has 8 divisors (see below), whose sum is σ = 436397831064. Its totient is φ = 387601482240.

The previous prime is 411990040967. The next prime is 411990040999. The reversal of 411990040981 is 189040099114.

It can be written as a sum of positive squares in 4 ways, for example, as 13140953956 + 398849087025 = 114634^2 + 631545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411990040981 is a prime.

It is a super-2 number, since 2×411990040981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411990043981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4763710 + ... + 4849423.

It is an arithmetic number, because the mean of its divisors is an integer number (54549728883).

Almost surely, 2^411990040981 is an apocalyptic number.

It is an amenable number.

411990040981 is a deficient number, since it is larger than the sum of its proper divisors (24407790083).

411990040981 is a wasteful number, since it uses less digits than its factorization.

411990040981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615671.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 411990040981 in words is "four hundred eleven billion, nine hundred ninety million, forty thousand, nine hundred eighty-one".