30153978033 has 4 divisors (see below), whose sum is σ = 40205304048. Its totient is φ = 20102652020.

The previous prime is 30153977989. The next prime is 30153978037. The reversal of 30153978033 is 33087935103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30153978033 - 2²⁵ = 30120423601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30153978037) 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, 5025663003 + ... + 5025663008.

It is an arithmetic number, because the mean of its divisors is an integer number (10051326012).

Almost surely, 2^30153978033 is an apocalyptic number.

It is an amenable number.

30153978033 is a deficient number, since it is larger than the sum of its proper divisors (10051326015).

30153978033 is a wasteful number, since it uses less digits than its factorization.

30153978033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051326014.

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 30153978033 in words is "thirty billion, one hundred fifty-three million, nine hundred seventy-eight thousand, thirty-three".