30287144302890 has 16 divisors (see below), whose sum is σ = 72689146327008. Its totient is φ = 8076571814096.

The previous prime is 30287144302879. The next prime is 30287144302897. The reversal of 30287144302890 is 9820344178203.

It is a super-2 number, since 2×30287144302890² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30287144302897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504785738352 + ... + 504785738411.

It is an arithmetic number, because the mean of its divisors is an integer number (4543071645438).

Almost surely, 2^{30287144302890} is an apocalyptic number.

30287144302890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30287144302890 is an abundant number, since it is smaller than the sum of its proper divisors (42402002024118).

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

30287144302890 is a wasteful number, since it uses less digits than its factorization.

30287144302890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009571476773.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 30287144302890 in words is "thirty trillion, two hundred eighty-seven billion, one hundred forty-four million, three hundred two thousand, eight hundred ninety".