331777648 has 10 divisors (see below), whose sum is σ = 642819224. Its totient is φ = 165888816.

The previous prime is 331777619. The next prime is 331777657. The reversal of 331777648 is 846777133.

It is a super-3 number, since 3×331777648³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 331777598 and 331777607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10368036 + ... + 10368067.

Almost surely, 2^331777648 is an apocalyptic number.

It is an amenable number.

331777648 is a deficient number, since it is larger than the sum of its proper divisors (311041576).

331777648 is a wasteful number, since it uses less digits than its factorization.

331777648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20736111 (or 20736105 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 331777648 is about 18214.7645606524. The cubic root of 331777648 is about 692.2809399780.

The spelling of 331777648 in words is "three hundred thirty-one million, seven hundred seventy-seven thousand, six hundred forty-eight".