643132015147 has 8 divisors (see below), whose sum is σ = 663889692672. Its totient is φ = 622375055400.

The previous prime is 643132015103. The next prime is 643132015157. The reversal of 643132015147 is 741510231346.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 643132015147 - 2¹⁵ = 643131982379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (643132015157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102148 + ... + 2388574.

It is an arithmetic number, because the mean of its divisors is an integer number (82986211584).

Almost surely, 2^643132015147 is an apocalyptic number.

643132015147 is a deficient number, since it is larger than the sum of its proper divisors (20757677525).

643132015147 is a wasteful number, since it uses less digits than its factorization.

643132015147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358889.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 643132015147 in words is "six hundred forty-three billion, one hundred thirty-two million, fifteen thousand, one hundred forty-seven".