7147854561 has 16 divisors (see below), whose sum is σ = 10109245824. Its totient is φ = 4476858624.

The previous prime is 7147854559. The next prime is 7147854563. The reversal of 7147854561 is 1654587417.

It is an interprime number because it is at equal distance from previous prime (7147854559) and next prime (7147854563).

It is not a de Polignac number, because 7147854561 - 2¹ = 7147854559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7147854561.

It is not an unprimeable number, because it can be changed into a prime (7147854563) 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, 97405 + ... + 154218.

It is an arithmetic number, because the mean of its divisors is an integer number (631827864).

Almost surely, 2^7147854561 is an apocalyptic number.

It is an amenable number.

7147854561 is a deficient number, since it is larger than the sum of its proper divisors (2961391263).

7147854561 is a wasteful number, since it uses less digits than its factorization.

7147854561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252200.

The product of its digits is 940800, while the sum is 48.

The square root of 7147854561 is about 84544.9854278774. The cubic root of 7147854561 is about 1926.3058153942.

The spelling of 7147854561 in words is "seven billion, one hundred forty-seven million, eight hundred fifty-four thousand, five hundred sixty-one".