30722386968 has 672 divisors, whose sum is σ = 110122460640. Its totient is φ = 7860602880.

The previous prime is 30722386939. The next prime is 30722386979. The reversal of 30722386968 is 86968322703.

It is a happy number.

It is a super-2 number, since 2×30722386968² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 420854580 + ... + 420854652.

Almost surely, 2^30722386968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30722386968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55061230320).

30722386968 is an abundant number, since it is smaller than the sum of its proper divisors (79400073672).

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

30722386968 is a wasteful number, since it uses less digits than its factorization.

30722386968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 30722386968 in words is "thirty billion, seven hundred twenty-two million, three hundred eighty-six thousand, nine hundred sixty-eight".