70152352421 has 4 divisors (see below), whose sum is σ = 71644955712. Its totient is φ = 68659749132.

The previous prime is 70152352411. The next prime is 70152352427. The reversal of 70152352421 is 12425325107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70152352421 is a prime.

It is a super-3 number, since 3×70152352421³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70152352427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746301575 + ... + 746301668.

It is an arithmetic number, because the mean of its divisors is an integer number (17911238928).

Almost surely, 2^70152352421 is an apocalyptic number.

It is an amenable number.

70152352421 is a deficient number, since it is larger than the sum of its proper divisors (1492603291).

70152352421 is a wasteful number, since it uses less digits than its factorization.

70152352421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492603290.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 70152352421 its reverse (12425325107), we get a palindrome (82577677528).

The spelling of 70152352421 in words is "seventy billion, one hundred fifty-two million, three hundred fifty-two thousand, four hundred twenty-one".