70470627581 has 16 divisors (see below), whose sum is σ = 76792128000. Its totient is φ = 64422734400.

The previous prime is 70470627569. The next prime is 70470627593. The reversal of 70470627581 is 18572607407.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70470627569) and next prime (70470627593).

It is a cyclic number.

It is not a de Polignac number, because 70470627581 - 2¹⁰ = 70470626557 is a prime.

It is a super-2 number, since 2×70470627581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70470627551) 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, 34151 + ... + 376971.

It is an arithmetic number, because the mean of its divisors is an integer number (4799508000).

Almost surely, 2^70470627581 is an apocalyptic number.

It is an amenable number.

70470627581 is a deficient number, since it is larger than the sum of its proper divisors (6321500419).

70470627581 is a wasteful number, since it uses less digits than its factorization.

70470627581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343220.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 70470627581 in words is "seventy billion, four hundred seventy million, six hundred twenty-seven thousand, five hundred eighty-one".