30021845950775 has 24 divisors (see below), whose sum is σ = 42546267635424. Its totient is φ = 20585913609600.

The previous prime is 30021845950751. The next prime is 30021845950883. The reversal of 30021845950775 is 57705954812003.

It is not a de Polignac number, because 30021845950775 - 2²⁰ = 30021844902199 is a prime.

It is a super-2 number, since 2×30021845950775² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30021845950775.

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, 5310605 + ... + 9393945.

It is an arithmetic number, because the mean of its divisors is an integer number (1772761151476).

Almost surely, 2^{30021845950775} is an apocalyptic number.

30021845950775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30021845950775 is a deficient number, since it is larger than the sum of its proper divisors (12524421684649).

30021845950775 is a wasteful number, since it uses less digits than its factorization.

30021845950775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125371 (or 4125366 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 30021845950775 in words is "thirty trillion, twenty-one billion, eight hundred forty-five million, nine hundred fifty thousand, seven hundred seventy-five".