928249799931 has 12 divisors (see below), whose sum is σ = 1340819135760. Its totient is φ = 618826798800.

The previous prime is 928249799927. The next prime is 928249799977. The reversal of 928249799931 is 139997942829.

It is not a de Polignac number, because 928249799931 - 2² = 928249799927 is a prime.

It is a super-2 number, since 2×928249799931² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 928249799931.

It is not an unprimeable number, because it can be changed into a prime (928249799431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487906 + ... + 1447256.

It is an arithmetic number, because the mean of its divisors is an integer number (111734927980).

Almost surely, 2^928249799931 is an apocalyptic number.

928249799931 is a deficient number, since it is larger than the sum of its proper divisors (412569335829).

928249799931 is a wasteful number, since it uses less digits than its factorization.

928249799931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066866 (or 1066863 counting only the distinct ones).

The product of its digits is 158723712, while the sum is 72.

The spelling of 928249799931 in words is "nine hundred twenty-eight billion, two hundred forty-nine million, seven hundred ninety-nine thousand, nine hundred thirty-one".