70641064051 has 4 divisors (see below), whose sum is σ = 70747934704. Its totient is φ = 70534193400.

The previous prime is 70641064037. The next prime is 70641064063. The reversal of 70641064051 is 15046014607.

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

It is a cyclic number.

It is not a de Polignac number, because 70641064051 - 2⁷ = 70641063923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70641063998 and 70641064016.

It is not an unprimeable number, because it can be changed into a prime (70641064001) 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, 53434335 + ... + 53435656.

It is an arithmetic number, because the mean of its divisors is an integer number (17686983676).

Almost surely, 2^70641064051 is an apocalyptic number.

70641064051 is a deficient number, since it is larger than the sum of its proper divisors (106870653).

70641064051 is a wasteful number, since it uses less digits than its factorization.

70641064051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106870652.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 70641064051 its reverse (15046014607), we get a palindrome (85687078658).

The spelling of 70641064051 in words is "seventy billion, six hundred forty-one million, sixty-four thousand, fifty-one".