78288001469 has 16 divisors (see below), whose sum is σ = 83170145520. Its totient is φ = 73437020160.

The previous prime is 78288001417. The next prime is 78288001499. The reversal of 78288001469 is 96410088287.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7236100 + 78280765369 = 2690^2 + 279787^2 .

It is a cyclic number.

It is not a de Polignac number, because 78288001469 - 2¹⁶ = 78287935933 is a prime.

It is a super-2 number, since 2×78288001469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78288001469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78288001499) 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, 7275197 + ... + 7285949.

It is an arithmetic number, because the mean of its divisors is an integer number (5198134095).

Almost surely, 2^78288001469 is an apocalyptic number.

It is an amenable number.

78288001469 is a deficient number, since it is larger than the sum of its proper divisors (4882144051).

78288001469 is a wasteful number, since it uses less digits than its factorization.

78288001469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 78288001469 in words is "seventy-eight billion, two hundred eighty-eight million, one thousand, four hundred sixty-nine".