623478374546 has 8 divisors (see below), whose sum is σ = 936073207884. Its totient is φ = 311453971920.

The previous prime is 623478374539. The next prime is 623478374711. The reversal of 623478374546 is 645473874326.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 556986079225 + 66492295321 = 746315^2 + 257861^2 .

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

It is a super-2 number, since 2×623478374546² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142604945 + ... + 142609316.

Almost surely, 2^623478374546 is an apocalyptic number.

623478374546 is a deficient number, since it is larger than the sum of its proper divisors (312594833338).

623478374546 is a wasteful number, since it uses less digits than its factorization.

623478374546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285215356.

The product of its digits is 81285120, while the sum is 59.

The spelling of 623478374546 in words is "six hundred twenty-three billion, four hundred seventy-eight million, three hundred seventy-four thousand, five hundred forty-six".