30253397982 has 24 divisors (see below), whose sum is σ = 64275389016. Its totient is φ = 9491261568.

The previous prime is 30253397969. The next prime is 30253397983. The reversal of 30253397982 is 28979335203.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30253397983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8721853 + ... + 8725320.

It is an arithmetic number, because the mean of its divisors is an integer number (2678141209).

Almost surely, 2^30253397982 is an apocalyptic number.

30253397982 is an abundant number, since it is smaller than the sum of its proper divisors (34021991034).

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

30253397982 is a wasteful number, since it uses less digits than its factorization.

30253397982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17447212 (or 17447195 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 30253397982 in words is "thirty billion, two hundred fifty-three million, three hundred ninety-seven thousand, nine hundred eighty-two".