70609721511 has 8 divisors (see below), whose sum is σ = 107595766144. Its totient is φ = 40348412280.

The previous prime is 70609721477. The next prime is 70609721513. The reversal of 70609721511 is 11512790607.

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

It is not a de Polignac number, because 70609721511 - 2¹⁰ = 70609720487 is a prime.

It is a super-2 number, since 2×70609721511² (a number of 22 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 70609721511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70609721513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681183825 + ... + 1681183866.

It is an arithmetic number, because the mean of its divisors is an integer number (13449470768).

Almost surely, 2^70609721511 is an apocalyptic number.

70609721511 is a deficient number, since it is larger than the sum of its proper divisors (36986044633).

70609721511 is a wasteful number, since it uses less digits than its factorization.

70609721511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362367701.

The product of its (nonzero) digits is 26460, while the sum is 39.

The spelling of 70609721511 in words is "seventy billion, six hundred nine million, seven hundred twenty-one thousand, five hundred eleven".