405845257963 has 4 divisors (see below), whose sum is σ = 406238139208. Its totient is φ = 405452376720.

The previous prime is 405845257957. The next prime is 405845258017. The reversal of 405845257963 is 369752548504.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405845257963 is a prime.

It is a super-2 number, since 2×405845257963² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405845257898 and 405845257907.

It is not an unprimeable number, because it can be changed into a prime (405845257933) 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, 196439073 + ... + 196441138.

It is an arithmetic number, because the mean of its divisors is an integer number (101559534802).

Almost surely, 2^405845257963 is an apocalyptic number.

405845257963 is a deficient number, since it is larger than the sum of its proper divisors (392881245).

405845257963 is a wasteful number, since it uses less digits than its factorization.

405845257963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392881244.

The product of its (nonzero) digits is 36288000, while the sum is 58.

The spelling of 405845257963 in words is "four hundred five billion, eight hundred forty-five million, two hundred fifty-seven thousand, nine hundred sixty-three".