93378331878 has 32 divisors (see below), whose sum is σ = 201957135072. Its totient is φ = 28612569600.

The previous prime is 93378331873. The next prime is 93378331897. The reversal of 93378331878 is 87813387339.

It is a super-2 number, since 2×93378331878² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93378331873) 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 15 ways as a sum of consecutive naturals, for example, 2464933 + ... + 2502528.

It is an arithmetic number, because the mean of its divisors is an integer number (6311160471).

Almost surely, 2^93378331878 is an apocalyptic number.

93378331878 is an abundant number, since it is smaller than the sum of its proper divisors (108578803194).

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

93378331878 is a wasteful number, since it uses less digits than its factorization.

93378331878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967720.

The product of its digits is 18289152, while the sum is 60.

The spelling of 93378331878 in words is "ninety-three billion, three hundred seventy-eight million, three hundred thirty-one thousand, eight hundred seventy-eight".