917248990948 has 12 divisors (see below), whose sum is σ = 1606577924140. Its totient is φ = 458226726912.

The previous prime is 917248990943. The next prime is 917248990951. The reversal of 917248990948 is 849099842719.

917248990948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 735532647424 + 181716343524 = 857632^2 + 426282^2 .

It is a super-2 number, since 2×917248990948² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (917248990943) 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, 99436953 + ... + 99446176.

Almost surely, 2^917248990948 is an apocalyptic number.

It is an amenable number.

917248990948 is a deficient number, since it is larger than the sum of its proper divisors (689328933192).

917248990948 is a wasteful number, since it uses less digits than its factorization.

917248990948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198884286 (or 198884284 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 70.

The spelling of 917248990948 in words is "nine hundred seventeen billion, two hundred forty-eight million, nine hundred ninety thousand, nine hundred forty-eight".