406778548337 has 8 divisors (see below), whose sum is σ = 464898974976. Its totient is φ = 348660423072.

The previous prime is 406778548331. The next prime is 406778548441. The reversal of 406778548337 is 733845877604.

It is a happy number.

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 406778548337 - 2²⁶ = 406711439473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 406778548337.

It is not an unprimeable number, because it can be changed into a prime (406778548331) 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, 178313 + ... + 919430.

It is an arithmetic number, because the mean of its divisors is an integer number (58112371872).

Almost surely, 2^406778548337 is an apocalyptic number.

It is an amenable number.

406778548337 is a deficient number, since it is larger than the sum of its proper divisors (58120426639).

406778548337 is a wasteful number, since it uses less digits than its factorization.

406778548337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150687.

The product of its (nonzero) digits is 94832640, while the sum is 62.

The spelling of 406778548337 in words is "four hundred six billion, seven hundred seventy-eight million, five hundred forty-eight thousand, three hundred thirty-seven".