868722803442 has 270 divisors, whose sum is σ = 2174596427421. Its totient is φ = 259090060320.

The previous prime is 868722803437. The next prime is 868722803449. The reversal of 868722803442 is 244308227868.

It can be written as a sum of positive squares in 2 ways, for example, as 742783698801 + 125939104641 = 861849^2 + 354879^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=659061.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (868722803449) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 6631471717 + ... + 6631471847.

Almost surely, 2^868722803442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868722803442

868722803442 is an abundant number, since it is smaller than the sum of its proper divisors (1305873623979).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868722803442 is a wasteful number, since it uses less digits than its factorization.

868722803442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 868722803442 in words is "eight hundred sixty-eight billion, seven hundred twenty-two million, eight hundred three thousand, four hundred forty-two".