641000502115 has 8 divisors (see below), whose sum is σ = 789989808240. Its totient is φ = 498940931232.

The previous prime is 641000502101. The next prime is 641000502119. The reversal of 641000502115 is 511205000146.

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 a de Polignac number, because none of the positive numbers 2^k-641000502115 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 641000502115.

It is not an unprimeable number, because it can be changed into a prime (641000502119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732433605 + ... + 1732433974.

It is an arithmetic number, because the mean of its divisors is an integer number (98748726030).

Almost surely, 2^641000502115 is an apocalyptic number.

641000502115 is a deficient number, since it is larger than the sum of its proper divisors (148989306125).

641000502115 is a wasteful number, since it uses less digits than its factorization.

641000502115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464867621.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 641000502115 in words is "six hundred forty-one billion, five hundred two thousand, one hundred fifteen".