126253309365 has 16 divisors (see below), whose sum is σ = 224450328000. Its totient is φ = 67335098256.

The previous prime is 126253309349. The next prime is 126253309367. The reversal of 126253309365 is 563903352621.

It is a happy number.

126253309365 is a `hidden beast` number, since 1 + 2 + 6 + 253 + 30 + 9 + 365 = 666.

It is not a de Polignac number, because 126253309365 - 2⁴ = 126253309349 is a prime.

It is a super-2 number, since 2×126253309365² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 126253309365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126253309367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467604715 + ... + 467604984.

It is an arithmetic number, because the mean of its divisors is an integer number (14028145500).

Almost surely, 2^126253309365 is an apocalyptic number.

126253309365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126253309365 is a deficient number, since it is larger than the sum of its proper divisors (98197018635).

126253309365 is an equidigital number, since it uses as much as digits as its factorization.

126253309365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935209713 (or 935209707 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 45.

The spelling of 126253309365 in words is "one hundred twenty-six billion, two hundred fifty-three million, three hundred nine thousand, three hundred sixty-five".