30000278028005 has 32 divisors (see below), whose sum is σ = 36685393682688. Its totient is φ = 23546842905600.

The previous prime is 30000278028001. The next prime is 30000278028029. The reversal of 30000278028005 is 50082087200003.

It is a happy number.

It is not a de Polignac number, because 30000278028005 - 2² = 30000278028001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000278028001) 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, 655620587 + ... + 655666343.

It is an arithmetic number, because the mean of its divisors is an integer number (1146418552584).

Almost surely, 2^{30000278028005} is an apocalyptic number.

It is an amenable number.

30000278028005 is a deficient number, since it is larger than the sum of its proper divisors (6685115654683).

30000278028005 is a wasteful number, since it uses less digits than its factorization.

30000278028005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54797.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 30000278028005 in words is "thirty trillion, two hundred seventy-eight million, twenty-eight thousand, five".