406563783494 has 32 divisors (see below), whose sum is σ = 666497129760. Its totient is φ = 184465612800.

The previous prime is 406563783449. The next prime is 406563783559. The reversal of 406563783494 is 494387365604.

It is a super-2 number, since 2×406563783494² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40276712 + ... + 40286804.

It is an arithmetic number, because the mean of its divisors is an integer number (20828035305).

Almost surely, 2^406563783494 is an apocalyptic number.

406563783494 is a deficient number, since it is larger than the sum of its proper divisors (259933346266).

406563783494 is a wasteful number, since it uses less digits than its factorization.

406563783494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13256.

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 406563783494 in words is "four hundred six billion, five hundred sixty-three million, seven hundred eighty-three thousand, four hundred ninety-four".