70312569921 has 24 divisors (see below), whose sum is σ = 110870506656. Its totient is φ = 42584855040.

The previous prime is 70312569881. The next prime is 70312569979. The reversal of 70312569921 is 12996521307.

It is a happy number.

70312569921 is a `hidden beast` number, since 70 + 3 + 12 + 569 + 9 + 2 + 1 = 666.

It is not a de Polignac number, because 70312569921 - 2¹⁵ = 70312537153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70311569921) 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 23 ways as a sum of consecutive naturals, for example, 92640 + ... + 386273.

It is an arithmetic number, because the mean of its divisors is an integer number (4619604444).

Almost surely, 2^70312569921 is an apocalyptic number.

It is an amenable number.

70312569921 is a deficient number, since it is larger than the sum of its proper divisors (40557936735).

70312569921 is a wasteful number, since it uses less digits than its factorization.

70312569921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480413 (or 480410 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 70312569921 in words is "seventy billion, three hundred twelve million, five hundred sixty-nine thousand, nine hundred twenty-one".