406776932351 has 4 divisors (see below), whose sum is σ = 428186244600. Its totient is φ = 385367620104.

The previous prime is 406776932329. The next prime is 406776932381. The reversal of 406776932351 is 153239677604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406776932351 - 2¹⁴ = 406776915967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406776932293 and 406776932302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406776932381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10704656096 + ... + 10704656133.

It is an arithmetic number, because the mean of its divisors is an integer number (107046561150).

Almost surely, 2^406776932351 is an apocalyptic number.

406776932351 is a deficient number, since it is larger than the sum of its proper divisors (21409312249).

406776932351 is a wasteful number, since it uses less digits than its factorization.

406776932351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21409312248.

The product of its (nonzero) digits is 5715360, while the sum is 53.

The spelling of 406776932351 in words is "four hundred six billion, seven hundred seventy-six million, nine hundred thirty-two thousand, three hundred fifty-one".