2345780123469 has 12 divisors (see below), whose sum is σ = 3391817195676. Its totient is φ = 1562252740992.

The previous prime is 2345780123447. The next prime is 2345780123503. The reversal of 2345780123469 is 9643210875432.

2345780123469 is a `hidden beast` number, since 2 + 3 + 4 + 57 + 8 + 0 + 123 + 469 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 916710502500 + 1429069620969 = 957450^2 + 1195437^2 .

It is not a de Polignac number, because 2345780123469 - 2²⁷ = 2345645905741 is a prime.

It is a super-2 number, since 2×2345780123469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345780123419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133380274 + ... + 133397859.

It is an arithmetic number, because the mean of its divisors is an integer number (282651432973).

It is a 1-persistent number, because it is pandigital, but 2⋅2345780123469 = 4691560246938 is not.

Almost surely, 2^{2345780123469} is an apocalyptic number.

It is an amenable number.

2345780123469 is a deficient number, since it is larger than the sum of its proper divisors (1046037072207).

2345780123469 is a wasteful number, since it uses less digits than its factorization.

2345780123469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266779116 (or 266779113 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 2345780123469 in words is "two trillion, three hundred forty-five billion, seven hundred eighty million, one hundred twenty-three thousand, four hundred sixty-nine".