93021000640 has 56 divisors (see below), whose sum is σ = 228651645312. Its totient is φ = 36008125440.

The previous prime is 93021000629. The next prime is 93021000643. The reversal of 93021000640 is 4600012039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93021000643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4678639 + ... + 4698478.

Almost surely, 2^93021000640 is an apocalyptic number.

It is an amenable number.

93021000640 is an abundant number, since it is smaller than the sum of its proper divisors (135630644672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

93021000640 is a wasteful number, since it uses less digits than its factorization.

93021000640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9377165 (or 9377155 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 93021000640 its reverse (4600012039), we get a palindrome (97621012679).

The spelling of 93021000640 in words is "ninety-three billion, twenty-one million, six hundred forty", and thus it is an aban number.