6415265873681 has 8 divisors (see below), whose sum is σ = 7717613081280. Its totient is φ = 5209388829648.

The previous prime is 6415265873663. The next prime is 6415265873699. The reversal of 6415265873681 is 1863785625146.

It is an interprime number because it is at equal distance from previous prime (6415265873663) and next prime (6415265873699).

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-6415265873681 is a prime.

It is a super-2 number, since 2×6415265873681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6415265873381) 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, 24117540746 + ... + 24117541011.

It is an arithmetic number, because the mean of its divisors is an integer number (964701635160).

Almost surely, 2^{6415265873681} is an apocalyptic number.

It is an amenable number.

6415265873681 is a deficient number, since it is larger than the sum of its proper divisors (1302347207599).

6415265873681 is a wasteful number, since it uses less digits than its factorization.

6415265873681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48235081783.

The product of its digits is 58060800, while the sum is 62.

The spelling of 6415265873681 in words is "six trillion, four hundred fifteen billion, two hundred sixty-five million, eight hundred seventy-three thousand, six hundred eighty-one".