2315066781 has 8 divisors (see below), whose sum is σ = 3193195680. Its totient is φ = 1490157872.

The previous prime is 2315066779. The next prime is 2315066861. The reversal of 2315066781 is 1876605132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2315066781 - 2¹ = 2315066779 is a prime.

It is a super-2 number, since 2×2315066781² = 10719068400979403922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315066711) 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 7 ways as a sum of consecutive naturals, for example, 13304895 + ... + 13305068.

It is an arithmetic number, because the mean of its divisors is an integer number (399149460).

Almost surely, 2^2315066781 is an apocalyptic number.

It is an amenable number.

2315066781 is a deficient number, since it is larger than the sum of its proper divisors (878128899).

2315066781 is a wasteful number, since it uses less digits than its factorization.

2315066781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26609995.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2315066781 is about 48115.1408706241. The cubic root of 2315066781 is about 1322.8822047986.

The spelling of 2315066781 in words is "two billion, three hundred fifteen million, sixty-six thousand, seven hundred eighty-one".