30819483252 has 72 divisors (see below), whose sum is σ = 80145846144. Its totient is φ = 9981406656.

The previous prime is 30819483223. The next prime is 30819483263. The reversal of 30819483252 is 25238491803.

30819483252 is a `hidden beast` number, since 308 + 1 + 94 + 8 + 3 + 252 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 30819483198 and 30819483207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118113 + ... + 274935.

It is an arithmetic number, because the mean of its divisors is an integer number (1113136752).

Almost surely, 2^30819483252 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 30819483252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40072923072).

30819483252 is an abundant number, since it is smaller than the sum of its proper divisors (49326362892).

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

30819483252 is a wasteful number, since it uses less digits than its factorization.

30819483252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156989 (or 156984 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 30819483252 in words is "thirty billion, eight hundred nineteen million, four hundred eighty-three thousand, two hundred fifty-two".