868261256453 has 8 divisors (see below), whose sum is σ = 906311524608. Its totient is φ = 830235969904.

The previous prime is 868261256431. The next prime is 868261256461. The reversal of 868261256453 is 354652162868.

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-868261256453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868261256053) 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, 6174350 + ... + 6313407.

It is an arithmetic number, because the mean of its divisors is an integer number (113288940576).

Almost surely, 2^868261256453 is an apocalyptic number.

It is an amenable number.

868261256453 is a deficient number, since it is larger than the sum of its proper divisors (38050268155).

868261256453 is a wasteful number, since it uses less digits than its factorization.

868261256453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490803.

The product of its digits is 16588800, while the sum is 56.

The spelling of 868261256453 in words is "eight hundred sixty-eight billion, two hundred sixty-one million, two hundred fifty-six thousand, four hundred fifty-three".