168272451942 has 64 divisors (see below), whose sum is σ = 407513203200. Its totient is φ = 45220225536.

The previous prime is 168272451931. The next prime is 168272451973. The reversal of 168272451942 is 249154272861.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029913 + ... + 1182059.

It is an arithmetic number, because the mean of its divisors is an integer number (6367393800).

Almost surely, 2^168272451942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168272451942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203756601600).

168272451942 is an abundant number, since it is smaller than the sum of its proper divisors (239240751258).

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

168272451942 is a wasteful number, since it uses less digits than its factorization.

168272451942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153725.

The product of its digits is 1935360, while the sum is 51.

The spelling of 168272451942 in words is "one hundred sixty-eight billion, two hundred seventy-two million, four hundred fifty-one thousand, nine hundred forty-two".