12735527623 has 24 divisors (see below), whose sum is σ = 16325464848. Its totient is φ = 9842103936.

The previous prime is 12735527617. The next prime is 12735527641. The reversal of 12735527623 is 32672553721.

It is not a de Polignac number, because 12735527623 - 2⁵ = 12735527591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 12735527623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735527023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205086 + ... + 259867.

It is an arithmetic number, because the mean of its divisors is an integer number (680227702).

Almost surely, 2^12735527623 is an apocalyptic number.

12735527623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12735527623 is a deficient number, since it is larger than the sum of its proper divisors (3589937225).

12735527623 is a wasteful number, since it uses less digits than its factorization.

12735527623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465023 (or 465016 counting only the distinct ones).

The product of its digits is 529200, while the sum is 43.

The spelling of 12735527623 in words is "twelve billion, seven hundred thirty-five million, five hundred twenty-seven thousand, six hundred twenty-three".