782640601469 has 4 divisors (see below), whose sum is σ = 794321804544. Its totient is φ = 770959398396.

The previous prime is 782640601439. The next prime is 782640601489. The reversal of 782640601469 is 964106046287.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-782640601469 is a prime.

It is a super-2 number, since 2×782640601469² (a number of 25 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 782640601469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782640601409) 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, 5840601437 + ... + 5840601570.

It is an arithmetic number, because the mean of its divisors is an integer number (198580451136).

Almost surely, 2^782640601469 is an apocalyptic number.

It is an amenable number.

782640601469 is a deficient number, since it is larger than the sum of its proper divisors (11681203075).

782640601469 is a wasteful number, since it uses less digits than its factorization.

782640601469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11681203074.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 782640601469 in words is "seven hundred eighty-two billion, six hundred forty million, six hundred one thousand, four hundred sixty-nine".