293990738564 has 6 divisors (see below), whose sum is σ = 514483792494. Its totient is φ = 146995369280.

The previous prime is 293990738539. The next prime is 293990738567. The reversal of 293990738564 is 465837099392.

It can be written as a sum of positive squares in only one way, i.e., 147577368964 + 146413369600 = 384158^2 + 382640^2 .

It is a super-2 number, since 2×293990738564² (a number of 24 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 293990738564.

It is not an unprimeable number, because it can be changed into a prime (293990738567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36748842317 + ... + 36748842324.

It is an arithmetic number, because the mean of its divisors is an integer number (85747298749).

Almost surely, 2^293990738564 is an apocalyptic number.

It is an amenable number.

293990738564 is a deficient number, since it is larger than the sum of its proper divisors (220493053930).

293990738564 is a wasteful number, since it uses less digits than its factorization.

293990738564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73497684645 (or 73497684643 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 65.

The spelling of 293990738564 in words is "two hundred ninety-three billion, nine hundred ninety million, seven hundred thirty-eight thousand, five hundred sixty-four".