993929350428 has 96 divisors (see below), whose sum is σ = 2945555020800. Its totient is φ = 283923966528.

The previous prime is 993929350423. The next prime is 993929350459. The reversal of 993929350428 is 824053929399.

993929350428 is a `hidden beast` number, since 9 + 9 + 39 + 2 + 93 + 504 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993929350423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3796201 + ... + 4049567.

It is an arithmetic number, because the mean of its divisors is an integer number (30682864800).

Almost surely, 2^993929350428 is an apocalyptic number.

It is an amenable number.

993929350428 is an abundant number, since it is smaller than the sum of its proper divisors (1951625670372).

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

993929350428 is a wasteful number, since it uses less digits than its factorization.

993929350428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258576 (or 258568 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 993929350428 in words is "nine hundred ninety-three billion, nine hundred twenty-nine million, three hundred fifty thousand, four hundred twenty-eight".