30366828157 has 4 divisors (see below), whose sum is σ = 30367228860. Its totient is φ = 30366427456.

The previous prime is 30366828137. The next prime is 30366828197. The reversal of 30366828157 is 75182866303.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75182866303 = 109 ⋅689751067.

It can be written as a sum of positive squares in 2 ways, for example, as 27772555801 + 2594272356 = 166651^2 + 50934^2 .

It is a cyclic number.

It is not a de Polignac number, because 30366828157 - 2³¹ = 28219344509 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 30366828157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30366828127) 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, 48118 + ... + 251095.

It is an arithmetic number, because the mean of its divisors is an integer number (7591807215).

Almost surely, 2^30366828157 is an apocalyptic number.

It is an amenable number.

30366828157 is a deficient number, since it is larger than the sum of its proper divisors (400703).

30366828157 is a wasteful number, since it uses less digits than its factorization.

30366828157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400702.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 30366828157 in words is "thirty billion, three hundred sixty-six million, eight hundred twenty-eight thousand, one hundred fifty-seven".