712800163861 has 4 divisors (see below), whose sum is σ = 712818749824. Its totient is φ = 712781577900.

The previous prime is 712800163819. The next prime is 712800163877. The reversal of 712800163861 is 168361008217.

712800163861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 712800163861 - 2¹¹ = 712800161813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712800163561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9235335 + ... + 9312196.

It is an arithmetic number, because the mean of its divisors is an integer number (178204687456).

Almost surely, 2^712800163861 is an apocalyptic number.

It is an amenable number.

712800163861 is a deficient number, since it is larger than the sum of its proper divisors (18585963).

712800163861 is a wasteful number, since it uses less digits than its factorization.

712800163861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18585962.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 712800163861 in words is "seven hundred twelve billion, eight hundred million, one hundred sixty-three thousand, eight hundred sixty-one".