70056883721 has 8 divisors (see below), whose sum is σ = 78289733088. Its totient is φ = 62134708000.

The previous prime is 70056883681. The next prime is 70056883723. The reversal of 70056883721 is 12738865007.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70056883721 - 2¹⁸ = 70056621577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70056883723) 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, 77667935 + ... + 77668836.

It is an arithmetic number, because the mean of its divisors is an integer number (9786216636).

Almost surely, 2^70056883721 is an apocalyptic number.

It is an amenable number.

70056883721 is a deficient number, since it is larger than the sum of its proper divisors (8232849367).

70056883721 is a wasteful number, since it uses less digits than its factorization.

70056883721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155336823.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 70056883721 in words is "seventy billion, fifty-six million, eight hundred eighty-three thousand, seven hundred twenty-one".