70521740052 has 12 divisors (see below), whose sum is σ = 164550726816. Its totient is φ = 23507246680.

The previous prime is 70521739993. The next prime is 70521740059. The reversal of 70521740052 is 25004712507.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 70521739995 and 70521740022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70521740059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938405824 + ... + 2938405847.

It is an arithmetic number, because the mean of its divisors is an integer number (13712560568).

Almost surely, 2^70521740052 is an apocalyptic number.

It is an amenable number.

70521740052 is an abundant number, since it is smaller than the sum of its proper divisors (94028986764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70521740052 is a wasteful number, since it uses less digits than its factorization.

70521740052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876811678 (or 5876811676 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The spelling of 70521740052 in words is "seventy billion, five hundred twenty-one million, seven hundred forty thousand, fifty-two".