30153714728 has 16 divisors (see below), whose sum is σ = 56543587380. Its totient is φ = 15075424768.

The previous prime is 30153714727. The next prime is 30153714733. The reversal of 30153714728 is 82741735103.

It can be written as a sum of positive squares in 2 ways, for example, as 27889668004 + 2264046724 = 167002^2 + 47582^2 .

It is a super-2 number, since 2×30153714728² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30153714727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86825 + ... + 260472.

Almost surely, 2^30153714728 is an apocalyptic number.

It is an amenable number.

30153714728 is a deficient number, since it is larger than the sum of its proper divisors (26389872652).

30153714728 is a wasteful number, since it uses less digits than its factorization.

30153714728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358156 (or 358152 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 30153714728 in words is "thirty billion, one hundred fifty-three million, seven hundred fourteen thousand, seven hundred twenty-eight".