409697819137 has 8 divisors (see below), whose sum is σ = 419802358976. Its totient is φ = 399619492272.

The previous prime is 409697819131. The next prime is 409697819159. The reversal of 409697819137 is 731918796904.

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 409697819137 - 2²³ = 409689430529 is a prime.

It is a super-2 number, since 2×409697819137² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409697819131) 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 7 ways as a sum of consecutive naturals, for example, 6521598 + ... + 6584119.

It is an arithmetic number, because the mean of its divisors is an integer number (52475294872).

Almost surely, 2^409697819137 is an apocalyptic number.

It is an amenable number.

409697819137 is a deficient number, since it is larger than the sum of its proper divisors (10104539839).

409697819137 is a wasteful number, since it uses less digits than its factorization.

409697819137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13106487.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The spelling of 409697819137 in words is "four hundred nine billion, six hundred ninety-seven million, eight hundred nineteen thousand, one hundred thirty-seven".