70521688142 has 16 divisors (see below), whose sum is σ = 110876774400. Its totient is φ = 33576513432.

The previous prime is 70521688109. The next prime is 70521688147. The reversal of 70521688142 is 24188612507.

It is a junction number, because it is equal to n+sod(n) for n = 70521688093 and 70521688102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70521688147) 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 7 ways as a sum of consecutive naturals, for example, 3427142 + ... + 3447657.

It is an arithmetic number, because the mean of its divisors is an integer number (6929798400).

Almost surely, 2^70521688142 is an apocalyptic number.

70521688142 is a deficient number, since it is larger than the sum of its proper divisors (40355086258).

70521688142 is a wasteful number, since it uses less digits than its factorization.

70521688142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875047.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 70521688142 in words is "seventy billion, five hundred twenty-one million, six hundred eighty-eight thousand, one hundred forty-two".