70147021847 has 4 divisors (see below), whose sum is σ = 80168024976. Its totient is φ = 60126018720.

The previous prime is 70147021771. The next prime is 70147021859. The reversal of 70147021847 is 74812074107.

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 70147021847 - 2⁸ = 70147021591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70147021897) 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, 5010501554 + ... + 5010501567.

It is an arithmetic number, because the mean of its divisors is an integer number (20042006244).

Almost surely, 2^70147021847 is an apocalyptic number.

70147021847 is a deficient number, since it is larger than the sum of its proper divisors (10021003129).

70147021847 is a wasteful number, since it uses less digits than its factorization.

70147021847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021003128.

The product of its (nonzero) digits is 87808, while the sum is 41.

The spelling of 70147021847 in words is "seventy billion, one hundred forty-seven million, twenty-one thousand, eight hundred forty-seven".