70127012721 has 8 divisors (see below), whose sum is σ = 93753362560. Its totient is φ = 46626002352.

The previous prime is 70127012717. The next prime is 70127012741. The reversal of 70127012721 is 12721072107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70127012721 - 2² = 70127012717 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70127012741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31333561 + ... + 31335798.

It is an arithmetic number, because the mean of its divisors is an integer number (11719170320).

Almost surely, 2^70127012721 is an apocalyptic number.

It is an amenable number.

70127012721 is a deficient number, since it is larger than the sum of its proper divisors (23626349839).

70127012721 is a wasteful number, since it uses less digits than its factorization.

70127012721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62669735.

The product of its (nonzero) digits is 2744, while the sum is 30.

Adding to 70127012721 its reverse (12721072107), we get a palindrome (82848084828).

The spelling of 70127012721 in words is "seventy billion, one hundred twenty-seven million, twelve thousand, seven hundred twenty-one".