70571211621 has 16 divisors (see below), whose sum is σ = 94805266944. Its totient is φ = 46692486144.

The previous prime is 70571211619. The next prime is 70571211647. The reversal of 70571211621 is 12611217507.

It is not a de Polignac number, because 70571211621 - 2¹ = 70571211619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70571211611) 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, 1835820 + ... + 1873866.

It is an arithmetic number, because the mean of its divisors is an integer number (5925329184).

Almost surely, 2^70571211621 is an apocalyptic number.

It is an amenable number.

70571211621 is a deficient number, since it is larger than the sum of its proper divisors (24234055323).

70571211621 is a wasteful number, since it uses less digits than its factorization.

70571211621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42700.

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 70571211621 in words is "seventy billion, five hundred seventy-one million, two hundred eleven thousand, six hundred twenty-one".