70505321351 has 16 divisors (see below), whose sum is σ = 71731408896. Its totient is φ = 69290301696.

The previous prime is 70505321347. The next prime is 70505321437. The reversal of 70505321351 is 15312350507.

It is a cyclic number.

It is not a de Polignac number, because 70505321351 - 2² = 70505321347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70505321311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24086450 + ... + 24089376.

It is an arithmetic number, because the mean of its divisors is an integer number (4483213056).

Almost surely, 2^70505321351 is an apocalyptic number.

70505321351 is a deficient number, since it is larger than the sum of its proper divisors (1226087545).

70505321351 is a wasteful number, since it uses less digits than its factorization.

70505321351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678.

The product of its (nonzero) digits is 15750, while the sum is 32.

Adding to 70505321351 its reverse (15312350507), we get a palindrome (85817671858).

The spelling of 70505321351 in words is "seventy billion, five hundred five million, three hundred twenty-one thousand, three hundred fifty-one".