7973186121 has 12 divisors (see below), whose sum is σ = 11559325440. Its totient is φ = 5295841560.

The previous prime is 7973186101. The next prime is 7973186183. The reversal of 7973186121 is 1216813797.

It is not a de Polignac number, because 7973186121 - 2⁷ = 7973185993 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (7973186101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1632081 + ... + 1636958.

It is an arithmetic number, because the mean of its divisors is an integer number (963277120).

Almost surely, 2^7973186121 is an apocalyptic number.

It is an amenable number.

7973186121 is a deficient number, since it is larger than the sum of its proper divisors (3586139319).

7973186121 is a wasteful number, since it uses less digits than its factorization.

7973186121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269316 (or 3269313 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 7973186121 is about 89292.6991472427. The cubic root of 7973186121 is about 1997.7630089517.

The spelling of 7973186121 in words is "seven billion, nine hundred seventy-three million, one hundred eighty-six thousand, one hundred twenty-one".