945821820115 has 8 divisors (see below), whose sum is σ = 1165661486640. Its totient is φ = 736207254432.

The previous prime is 945821820103. The next prime is 945821820133. The reversal of 945821820115 is 511028128549.

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 945821820115 - 2²¹ = 945819722963 is a prime.

It is a super-2 number, since 2×945821820115² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2556275005 + ... + 2556275374.

It is an arithmetic number, because the mean of its divisors is an integer number (145707685830).

Almost surely, 2^945821820115 is an apocalyptic number.

945821820115 is a deficient number, since it is larger than the sum of its proper divisors (219839666525).

945821820115 is a wasteful number, since it uses less digits than its factorization.

945821820115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112550421.

The product of its (nonzero) digits is 230400, while the sum is 46.

The spelling of 945821820115 in words is "nine hundred forty-five billion, eight hundred twenty-one million, eight hundred twenty thousand, one hundred fifteen".