642513646059 has 8 divisors (see below), whose sum is σ = 858887137680. Its totient is φ = 427241292576.

The previous prime is 642513645979. The next prime is 642513646087. The reversal of 642513646059 is 950646315246.

642513646059 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 642513646059 - 2⁷ = 642513645931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642513641059) 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, 275283172 + ... + 275285505.

It is an arithmetic number, because the mean of its divisors is an integer number (107360892210).

Almost surely, 2^642513646059 is an apocalyptic number.

642513646059 is a deficient number, since it is larger than the sum of its proper divisors (216373491621).

642513646059 is a wasteful number, since it uses less digits than its factorization.

642513646059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550569069.

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 642513646059 in words is "six hundred forty-two billion, five hundred thirteen million, six hundred forty-six thousand, fifty-nine".