68420954112 has 768 divisors, whose sum is σ = 235830067200. Its totient is φ = 17199267840.

The previous prime is 68420954099. The next prime is 68420954123. The reversal of 68420954112 is 21145902486.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 937273308 + ... + 937273380.

It is an arithmetic number, because the mean of its divisors is an integer number (307070400).

Almost surely, 2^68420954112 is an apocalyptic number.

68420954112 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68420954112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117915033600).

68420954112 is an abundant number, since it is smaller than the sum of its proper divisors (167409113088).

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

68420954112 is a wasteful number, since it uses less digits than its factorization.

68420954112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 68420954112 in words is "sixty-eight billion, four hundred twenty million, nine hundred fifty-four thousand, one hundred twelve".