70712520719 has 4 divisors (see below), whose sum is σ = 71767931544. Its totient is φ = 69657109896.

The previous prime is 70712520701. The next prime is 70712520727. The reversal of 70712520719 is 91702521707.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91702521707 = 18451 ⋅4970057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70712520719 is a prime.

It is a super-2 number, since 2×70712520719² (a number of 23 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 (70712520019) 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, 527705312 + ... + 527705445.

It is an arithmetic number, because the mean of its divisors is an integer number (17941982886).

Almost surely, 2^70712520719 is an apocalyptic number.

70712520719 is a deficient number, since it is larger than the sum of its proper divisors (1055410825).

70712520719 is a wasteful number, since it uses less digits than its factorization.

70712520719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055410824.

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 70712520719 in words is "seventy billion, seven hundred twelve million, five hundred twenty thousand, seven hundred nineteen".