93778821641604 has 96 divisors (see below), whose sum is σ = 238913072004096. Its totient is φ = 28393626244480.

The previous prime is 93778821641581. The next prime is 93778821641657. The reversal of 93778821641604 is 40614612887739.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861669439 + ... + 861778265.

It is an arithmetic number, because the mean of its divisors is an integer number (2488677833376).

Almost surely, 2^{93778821641604} is an apocalyptic number.

It is an amenable number.

93778821641604 is an abundant number, since it is smaller than the sum of its proper divisors (145134250362492).

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

93778821641604 is a wasteful number, since it uses less digits than its factorization.

93778821641604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114345 (or 114343 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 66.

The spelling of 93778821641604 in words is "ninety-three trillion, seven hundred seventy-eight billion, eight hundred twenty-one million, six hundred forty-one thousand, six hundred four".