423620534451 has 4 divisors (see below), whose sum is σ = 564827379272. Its totient is φ = 282413689632.

The previous prime is 423620534423. The next prime is 423620534459. The reversal of 423620534451 is 154435026324.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 423620534451 - 2¹⁷ = 423620403379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423620534459) 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, 70603422406 + ... + 70603422411.

It is an arithmetic number, because the mean of its divisors is an integer number (141206844818).

Almost surely, 2^423620534451 is an apocalyptic number.

423620534451 is a deficient number, since it is larger than the sum of its proper divisors (141206844821).

423620534451 is a wasteful number, since it uses less digits than its factorization.

423620534451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141206844820.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 423620534451 in words is "four hundred twenty-three billion, six hundred twenty million, five hundred thirty-four thousand, four hundred fifty-one".