70547311421 has 4 divisors (see below), whose sum is σ = 70581509952. Its totient is φ = 70513112892.

The previous prime is 70547311409. The next prime is 70547311427. The reversal of 70547311421 is 12411374507.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12411374507 = 7 ⋅1773053501.

It is a cyclic number.

It is not a de Polignac number, because 70547311421 - 2¹⁴ = 70547295037 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 (70547311427) 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, 17096171 + ... + 17100296.

It is an arithmetic number, because the mean of its divisors is an integer number (17645377488).

Almost surely, 2^70547311421 is an apocalyptic number.

It is an amenable number.

70547311421 is a deficient number, since it is larger than the sum of its proper divisors (34198531).

70547311421 is a wasteful number, since it uses less digits than its factorization.

70547311421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34198530.

The product of its (nonzero) digits is 23520, while the sum is 35.

Adding to 70547311421 its reverse (12411374507), we get a palindrome (82958685928).

The spelling of 70547311421 in words is "seventy billion, five hundred forty-seven million, three hundred eleven thousand, four hundred twenty-one".