123637489383 has 4 divisors (see below), whose sum is σ = 164849985848. Its totient is φ = 82424992920.

The previous prime is 123637489373. The next prime is 123637489397. The reversal of 123637489383 is 383984736321.

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

It is not a de Polignac number, because 123637489383 - 2¹⁸ = 123637227239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123637489373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20606248228 + ... + 20606248233.

It is an arithmetic number, because the mean of its divisors is an integer number (41212496462).

Almost surely, 2^123637489383 is an apocalyptic number.

123637489383 is a deficient number, since it is larger than the sum of its proper divisors (41212496465).

123637489383 is an equidigital number, since it uses as much as digits as its factorization.

123637489383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41212496464.

The product of its digits is 15676416, while the sum is 57.

The spelling of 123637489383 in words is "one hundred twenty-three billion, six hundred thirty-seven million, four hundred eighty-nine thousand, three hundred eighty-three".