423121612546 has 16 divisors (see below), whose sum is σ = 651870648576. Its totient is φ = 205832004336.

The previous prime is 423121612519. The next prime is 423121612553. The reversal of 423121612546 is 645216121324.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348975 + ... + 1632781.

It is an arithmetic number, because the mean of its divisors is an integer number (40741915536).

Almost surely, 2^423121612546 is an apocalyptic number.

423121612546 is a deficient number, since it is larger than the sum of its proper divisors (228749036030).

423121612546 is a wasteful number, since it uses less digits than its factorization.

423121612546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303993.

The product of its digits is 69120, while the sum is 37.

The spelling of 423121612546 in words is "four hundred twenty-three billion, one hundred twenty-one million, six hundred twelve thousand, five hundred forty-six".