70544692953521 has 4 divisors (see below), whose sum is σ = 70544717234544. Its totient is φ = 70544668672500.

The previous prime is 70544692953491. The next prime is 70544692953569. The reversal of 70544692953521 is 12535929644507.

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 not a de Polignac number, because 70544692953521 - 2³⁰ = 70543619211697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70544692950521) 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, 7079135 + ... + 13827636.

It is an arithmetic number, because the mean of its divisors is an integer number (17636179308636).

Almost surely, 2^{70544692953521} is an apocalyptic number.

It is an amenable number.

70544692953521 is a deficient number, since it is larger than the sum of its proper divisors (24281023).

70544692953521 is a wasteful number, since it uses less digits than its factorization.

70544692953521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24281022.

The product of its (nonzero) digits is 81648000, while the sum is 62.

The spelling of 70544692953521 in words is "seventy trillion, five hundred forty-four billion, six hundred ninety-two million, nine hundred fifty-three thousand, five hundred twenty-one".