408972827497 has 16 divisors (see below), whose sum is σ = 455647530240. Its totient is φ = 364473329472.

The previous prime is 408972827491. The next prime is 408972827519. The reversal of 408972827497 is 794728279804.

It is a cyclic number.

It is not a de Polignac number, because 408972827497 - 2¹⁵ = 408972794729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408972827491) 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, 10787028 + ... + 10824874.

It is an arithmetic number, because the mean of its divisors is an integer number (28477970640).

Almost surely, 2^408972827497 is an apocalyptic number.

It is an amenable number.

408972827497 is a deficient number, since it is larger than the sum of its proper divisors (46674702743).

408972827497 is a wasteful number, since it uses less digits than its factorization.

408972827497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66552.

The product of its (nonzero) digits is 113799168, while the sum is 67.

The spelling of 408972827497 in words is "four hundred eight billion, nine hundred seventy-two million, eight hundred twenty-seven thousand, four hundred ninety-seven".