70508885581 has 16 divisors (see below), whose sum is σ = 71851253760. Its totient is φ = 69179160960.

The previous prime is 70508885567. The next prime is 70508885593. The reversal of 70508885581 is 18558880507.

It is a cyclic number.

It is not a de Polignac number, because 70508885581 - 2¹⁹ = 70508361293 is a prime.

It is a super-2 number, since 2×70508885581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70508885521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8498071 + ... + 8506363.

It is an arithmetic number, because the mean of its divisors is an integer number (4490703360).

Almost surely, 2^70508885581 is an apocalyptic number.

It is an amenable number.

70508885581 is a deficient number, since it is larger than the sum of its proper divisors (1342368179).

70508885581 is a wasteful number, since it uses less digits than its factorization.

70508885581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9036.

The product of its (nonzero) digits is 3584000, while the sum is 55.

The spelling of 70508885581 in words is "seventy billion, five hundred eight million, eight hundred eighty-five thousand, five hundred eighty-one".