30051854868 has 96 divisors (see below), whose sum is σ = 84623616000. Its totient is φ = 8108539776.

The previous prime is 30051854867. The next prime is 30051854881. The reversal of 30051854868 is 86845815003.

It is a super-2 number, since 2×30051854868² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30051854867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476233 + ... + 535631.

It is an arithmetic number, because the mean of its divisors is an integer number (881496000).

Almost surely, 2^30051854868 is an apocalyptic number.

30051854868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30051854868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42311808000).

30051854868 is an abundant number, since it is smaller than the sum of its proper divisors (54571761132).

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

30051854868 is a wasteful number, since it uses less digits than its factorization.

30051854868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59749 (or 59747 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 30051854868 in words is "thirty billion, fifty-one million, eight hundred fifty-four thousand, eight hundred sixty-eight".