409076615981 has 8 divisors (see below), whose sum is σ = 448730956128. Its totient is φ = 369833202000.

The previous prime is 409076615951. The next prime is 409076616031. The reversal of 409076615981 is 189516670904.

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

It is a cyclic number.

It is not a de Polignac number, because 409076615981 - 2¹⁰ = 409076614957 is a prime.

It is a super-2 number, since 2×409076615981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409076615951) 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, 102729455 + ... + 102733436.

It is an arithmetic number, because the mean of its divisors is an integer number (56091369516).

Almost surely, 2^409076615981 is an apocalyptic number.

It is an amenable number.

409076615981 is a deficient number, since it is larger than the sum of its proper divisors (39654340147).

409076615981 is a wasteful number, since it uses less digits than its factorization.

409076615981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205463083.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 409076615981 in words is "four hundred nine billion, seventy-six million, six hundred fifteen thousand, nine hundred eighty-one".