623388363008 has 18 divisors (see below), whose sum is σ = 1244341615734. Its totient is φ = 311694181376.

The previous prime is 623388362959. The next prime is 623388363011. The reversal of 623388363008 is 800363883326.

It can be written as a sum of positive squares in only one way, i.e., 620011358464 + 3377004544 = 787408^2 + 58112^2 .

It is a super-2 number, since 2×623388363008² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217555141 + ... + 1217555652.

It is an arithmetic number, because the mean of its divisors is an integer number (69130089763).

Almost surely, 2^623388363008 is an apocalyptic number.

It is an amenable number.

623388363008 is a deficient number, since it is larger than the sum of its proper divisors (620953252726).

623388363008 is an equidigital number, since it uses as much as digits as its factorization.

623388363008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435110809 (or 2435110795 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 623388363008 in words is "six hundred twenty-three billion, three hundred eighty-eight million, three hundred sixty-three thousand, eight".