70143530427 has 24 divisors (see below), whose sum is σ = 103672318464. Its totient is φ = 45679756464.

The previous prime is 70143530419. The next prime is 70143530447. The reversal of 70143530427 is 72403534107.

70143530427 is a `hidden beast` number, since 70 + 14 + 3 + 530 + 42 + 7 = 666.

It is not a de Polignac number, because 70143530427 - 2³ = 70143530419 is a prime.

It is a super-2 number, since 2×70143530427² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70143530391 and 70143530400.

It is not an unprimeable number, because it can be changed into a prime (70143530417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62698 + ... + 379760.

It is an arithmetic number, because the mean of its divisors is an integer number (4319679936).

Almost surely, 2^70143530427 is an apocalyptic number.

70143530427 is a deficient number, since it is larger than the sum of its proper divisors (33528788037).

70143530427 is a wasteful number, since it uses less digits than its factorization.

70143530427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317639 (or 317636 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 70143530427 in words is "seventy billion, one hundred forty-three million, five hundred thirty thousand, four hundred twenty-seven".