420745245512 has 16 divisors (see below), whose sum is σ = 823197219840. Its totient is φ = 201225986896.

The previous prime is 420745245511. The next prime is 420745245517. The reversal of 420745245512 is 215542547024.

It is a super-2 number, since 2×420745245512² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420745245512.

It is not an unprimeable number, because it can be changed into a prime (420745245511) 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, 1143329288 + ... + 1143329655.

It is an arithmetic number, because the mean of its divisors is an integer number (51449826240).

Almost surely, 2^420745245512 is an apocalyptic number.

It is an amenable number.

420745245512 is a deficient number, since it is larger than the sum of its proper divisors (402451974328).

420745245512 is a wasteful number, since it uses less digits than its factorization.

420745245512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286658972 (or 2286658968 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 41.

The spelling of 420745245512 in words is "four hundred twenty billion, seven hundred forty-five million, two hundred forty-five thousand, five hundred twelve".