930287864881 has 4 divisors (see below), whose sum is σ = 930961499764. Its totient is φ = 929614230000.

The previous prime is 930287864789. The next prime is 930287864893. The reversal of 930287864881 is 188468782039.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 188468782039 = 19 ⋅9919409581.

It can be written as a sum of positive squares in 2 ways, for example, as 131159141281 + 799128723600 = 362159^2 + 893940^2 .

It is a cyclic number.

It is not a de Polignac number, because 930287864881 - 2¹³ = 930287856689 is a prime.

It is a super-2 number, since 2×930287864881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (930287864581) 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, 336815370 + ... + 336818131.

It is an arithmetic number, because the mean of its divisors is an integer number (232740374941).

Almost surely, 2^930287864881 is an apocalyptic number.

It is an amenable number.

930287864881 is a deficient number, since it is larger than the sum of its proper divisors (673634883).

930287864881 is a wasteful number, since it uses less digits than its factorization.

930287864881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673634882.

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 930287864881 in words is "nine hundred thirty billion, two hundred eighty-seven million, eight hundred sixty-four thousand, eight hundred eighty-one".