421596346544 has 40 divisors (see below), whose sum is σ = 838808455680. Its totient is φ = 205192286208.

The previous prime is 421596346541. The next prime is 421596346559. The reversal of 421596346544 is 445643695124.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (421596346541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849649 + ... + 2065040.

It is an arithmetic number, because the mean of its divisors is an integer number (20970211392).

Almost surely, 2^421596346544 is an apocalyptic number.

It is an amenable number.

421596346544 is a deficient number, since it is larger than the sum of its proper divisors (417212109136).

421596346544 is a wasteful number, since it uses less digits than its factorization.

421596346544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914877 (or 3914871 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 53.

The spelling of 421596346544 in words is "four hundred twenty-one billion, five hundred ninety-six million, three hundred forty-six thousand, five hundred forty-four".