30142858747 has 4 divisors (see below), whose sum is σ = 30143633976. Its totient is φ = 30142083520.

The previous prime is 30142858727. The next prime is 30142858777. The reversal of 30142858747 is 74785824103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74785824103 = 105527 ⋅708689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30142858747 is a prime.

It is a pancake number, because a pancake can be divided into 30142858747 parts by 245531 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30142858747.

It is not an unprimeable number, because it can be changed into a prime (30142858727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326029 + ... + 408142.

It is an arithmetic number, because the mean of its divisors is an integer number (7535908494).

Almost surely, 2^30142858747 is an apocalyptic number.

30142858747 is a deficient number, since it is larger than the sum of its proper divisors (775229).

30142858747 is an equidigital number, since it uses as much as digits as its factorization.

30142858747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775228.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 30142858747 in words is "thirty billion, one hundred forty-two million, eight hundred fifty-eight thousand, seven hundred forty-seven".