30316261015993 has 4 divisors (see below), whose sum is σ = 32099570487540. Its totient is φ = 28532951544448.

The previous prime is 30316261015991. The next prime is 30316261016011. The reversal of 30316261015993 is 39951016261303.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12096706593024 + 18219554422969 = 3478032^2 + 4268437^2 .

It is a cyclic number.

It is not a de Polignac number, because 30316261015993 - 2¹ = 30316261015991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30316261015991) 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, 891654735748 + ... + 891654735781.

It is an arithmetic number, because the mean of its divisors is an integer number (8024892621885).

Almost surely, 2^{30316261015993} is an apocalyptic number.

It is an amenable number.

30316261015993 is a deficient number, since it is larger than the sum of its proper divisors (1783309471547).

30316261015993 is a wasteful number, since it uses less digits than its factorization.

30316261015993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783309471546.

The product of its (nonzero) digits is 787320, while the sum is 49.

The spelling of 30316261015993 in words is "thirty trillion, three hundred sixteen billion, two hundred sixty-one million, fifteen thousand, nine hundred ninety-three".