790694789509 has 8 divisors (see below), whose sum is σ = 793355112440. Its totient is φ = 788038891200.

The previous prime is 790694789483. The next prime is 790694789527. The reversal of 790694789509 is 905987496097.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75787337025 + 714907452484 = 275295^2 + 845522^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 790694789509 - 2¹¹ = 790694787461 is a prime.

It is a super-2 number, since 2×790694789509² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (790694789569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747954 + ... + 1463155.

It is an arithmetic number, because the mean of its divisors is an integer number (99169389055).

Almost surely, 2^790694789509 is an apocalyptic number.

It is an amenable number.

790694789509 is a deficient number, since it is larger than the sum of its proper divisors (2660322931).

790694789509 is a wasteful number, since it uses less digits than its factorization.

790694789509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212311.

The product of its (nonzero) digits is 308629440, while the sum is 73.

The spelling of 790694789509 in words is "seven hundred ninety billion, six hundred ninety-four million, seven hundred eighty-nine thousand, five hundred nine".