30308720052 has 192 divisors, whose sum is σ = 80009156864. Its totient is φ = 8868372480.

The previous prime is 30308720041. The next prime is 30308720077. The reversal of 30308720052 is 25002780303.

It is a super-2 number, since 2×30308720052² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69996828 + ... + 69997260.

Almost surely, 2^30308720052 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 30308720052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40004578432).

30308720052 is an abundant number, since it is smaller than the sum of its proper divisors (49700436812).

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

30308720052 is a wasteful number, since it uses less digits than its factorization.

30308720052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 30308720052 in words is "thirty billion, three hundred eight million, seven hundred twenty thousand, fifty-two".