70628943587 has 4 divisors (see below), whose sum is σ = 71253978600. Its totient is φ = 70003908576.

The previous prime is 70628943569. The next prime is 70628943611. The reversal of 70628943587 is 78534982607.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70628943587 - 2¹⁶ = 70628878051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70628943557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312517337 + ... + 312517562.

It is an arithmetic number, because the mean of its divisors is an integer number (17813494650).

Almost surely, 2^70628943587 is an apocalyptic number.

70628943587 is a deficient number, since it is larger than the sum of its proper divisors (625035013).

70628943587 is a wasteful number, since it uses less digits than its factorization.

70628943587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625035012.

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 70628943587 in words is "seventy billion, six hundred twenty-eight million, nine hundred forty-three thousand, five hundred eighty-seven".