782070867513 has 12 divisors (see below), whose sum is σ = 1216554682980. Its totient is φ = 481274379936.

The previous prime is 782070867491. The next prime is 782070867551. The reversal of 782070867513 is 315768070287.

782070867513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36813329424 + 745257538089 = 191868^2 + 863283^2 .

It is not a de Polignac number, because 782070867513 - 2⁶ = 782070867449 is a prime.

It is a super-2 number, since 2×782070867513² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 782070867513.

It is not an unprimeable number, because it can be changed into a prime (782070867553) 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, 3342183078 + ... + 3342183311.

It is an arithmetic number, because the mean of its divisors is an integer number (101379556915).

Almost surely, 2^782070867513 is an apocalyptic number.

It is an amenable number.

782070867513 is a deficient number, since it is larger than the sum of its proper divisors (434483815467).

782070867513 is a wasteful number, since it uses less digits than its factorization.

782070867513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684366408 (or 6684366405 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 782070867513 in words is "seven hundred eighty-two billion, seventy million, eight hundred sixty-seven thousand, five hundred thirteen".