6446400594458 has 8 divisors (see below), whose sum is σ = 10548655518240. Its totient is φ = 2930182088380.

The previous prime is 6446400594457. The next prime is 6446400594467. The reversal of 6446400594458 is 8544950046446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6446400594397 and 6446400594406.

It is not an unprimeable number, because it can be changed into a prime (6446400594457) 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, 146509104398 + ... + 146509104441.

It is an arithmetic number, because the mean of its divisors is an integer number (1318581939780).

Almost surely, 2^{6446400594458} is an apocalyptic number.

6446400594458 is a deficient number, since it is larger than the sum of its proper divisors (4102254923782).

6446400594458 is a wasteful number, since it uses less digits than its factorization.

6446400594458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293018208852.

The product of its (nonzero) digits is 66355200, while the sum is 59.

The spelling of 6446400594458 in words is "six trillion, four hundred forty-six billion, four hundred million, five hundred ninety-four thousand, four hundred fifty-eight".