70622389577 has 4 divisors (see below), whose sum is σ = 73057644420. Its totient is φ = 68187134736.

The previous prime is 70622389567. The next prime is 70622389589. The reversal of 70622389577 is 77598322607.

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 32480690176 + 38141699401 = 180224^2 + 195299^2 .

It is a cyclic number.

It is not a de Polignac number, because 70622389577 - 2⁴ = 70622389561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70622389567) 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, 1217627378 + ... + 1217627435.

It is an arithmetic number, because the mean of its divisors is an integer number (18264411105).

Almost surely, 2^70622389577 is an apocalyptic number.

It is an amenable number.

70622389577 is a deficient number, since it is larger than the sum of its proper divisors (2435254843).

70622389577 is a wasteful number, since it uses less digits than its factorization.

70622389577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435254842.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 70622389577 in words is "seventy billion, six hundred twenty-two million, three hundred eighty-nine thousand, five hundred seventy-seven".