30148702457 has 4 divisors (see below), whose sum is σ = 30511939920. Its totient is φ = 29785464996.

The previous prime is 30148702453. The next prime is 30148702511. The reversal of 30148702457 is 75420784103.

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 30148702457 - 2² = 30148702453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30148702453) 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, 181618607 + ... + 181618772.

It is an arithmetic number, because the mean of its divisors is an integer number (7627984980).

Almost surely, 2^30148702457 is an apocalyptic number.

It is an amenable number.

30148702457 is a deficient number, since it is larger than the sum of its proper divisors (363237463).

30148702457 is an equidigital number, since it uses as much as digits as its factorization.

30148702457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363237462.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 30148702457 in words is "thirty billion, one hundred forty-eight million, seven hundred two thousand, four hundred fifty-seven".