971944191042 has 16 divisors (see below), whose sum is σ = 2120605507872. Its totient is φ = 294528542720.

The previous prime is 971944191041. The next prime is 971944191061. The reversal of 971944191042 is 240191449179.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (971944191041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7363213503 + ... + 7363213634.

It is an arithmetic number, because the mean of its divisors is an integer number (132537844242).

Almost surely, 2^971944191042 is an apocalyptic number.

971944191042 is an abundant number, since it is smaller than the sum of its proper divisors (1148661316830).

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

971944191042 is a wasteful number, since it uses less digits than its factorization.

971944191042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14726427153.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 971944191042 in words is "nine hundred seventy-one billion, nine hundred forty-four million, one hundred ninety-one thousand, forty-two".