264798021464 has 16 divisors (see below), whose sum is σ = 502478174520. Its totient is φ = 130803841600.

The previous prime is 264798021463. The next prime is 264798021473. The reversal of 264798021464 is 464120897462.

It is a super-3 number, since 3×264798021464³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264798021463) 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, 199395437 + ... + 199396764.

Almost surely, 2^264798021464 is an apocalyptic number.

It is an amenable number.

264798021464 is a deficient number, since it is larger than the sum of its proper divisors (237680153056).

264798021464 is a wasteful number, since it uses less digits than its factorization.

264798021464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398792290 (or 398792286 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 264798021464 in words is "two hundred sixty-four billion, seven hundred ninety-eight million, twenty-one thousand, four hundred sixty-four".