125623014657769 has 4 divisors (see below), whose sum is σ = 125624643305044. Its totient is φ = 125621386010496.

The previous prime is 125623014657739. The next prime is 125623014657781. The reversal of 125623014657769 is 967756410326521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65638191027600 + 59984823630169 = 8101740^2 + 7744987^2 .

It is a cyclic number.

It is not a de Polignac number, because 125623014657769 - 2²⁵ = 125622981103337 is a prime.

It is a super-2 number, since 2×125623014657769² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125623014657769.

It is not an unprimeable number, because it can be changed into a prime (125623014657739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814207932 + ... + 814362205.

It is an arithmetic number, because the mean of its divisors is an integer number (31406160826261).

Almost surely, 2^{125623014657769} is an apocalyptic number.

It is an amenable number.

125623014657769 is a deficient number, since it is larger than the sum of its proper divisors (1628647275).

125623014657769 is an equidigital number, since it uses as much as digits as its factorization.

125623014657769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628647274.

The product of its (nonzero) digits is 114307200, while the sum is 64.

The spelling of 125623014657769 in words is "one hundred twenty-five trillion, six hundred twenty-three billion, fourteen million, six hundred fifty-seven thousand, seven hundred sixty-nine".