30126551380 has 96 divisors (see below), whose sum is σ = 67002163200. Its totient is φ = 11355886080.

The previous prime is 30126551363. The next prime is 30126551381. The reversal of 30126551380 is 8315562103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30126551381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8702850 + ... + 8706310.

It is an arithmetic number, because the mean of its divisors is an integer number (697939200).

Almost surely, 2^30126551380 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 30126551380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33501081600).

30126551380 is an abundant number, since it is smaller than the sum of its proper divisors (36875611820).

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

30126551380 is a wasteful number, since it uses less digits than its factorization.

30126551380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769 (or 3767 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 30126551380 in words is "thirty billion, one hundred twenty-six million, five hundred fifty-one thousand, three hundred eighty".