70764005321 has 4 divisors (see below), whose sum is σ = 71924071044. Its totient is φ = 69603939600.

The previous prime is 70764005303. The next prime is 70764005341. The reversal of 70764005321 is 12350046707.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1184116921 + 69579888400 = 34411^2 + 263780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70764005321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70764005341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580032770 + ... + 580032891.

It is an arithmetic number, because the mean of its divisors is an integer number (17981017761).

Almost surely, 2^70764005321 is an apocalyptic number.

It is an amenable number.

70764005321 is a deficient number, since it is larger than the sum of its proper divisors (1160065723).

70764005321 is a wasteful number, since it uses less digits than its factorization.

70764005321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160065722.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 70764005321 in words is "seventy billion, seven hundred sixty-four million, five thousand, three hundred twenty-one".