978119022001 has 9 divisors (see below), whose sum is σ = 1075134519403. Its totient is φ = 889189220920.

The previous prime is 978119021993. The next prime is 978119022017. The reversal of 978119022001 is 100220911879.

The square root of 978119022001 is 988999.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 124749533601 + 853369488400 = 353199^2 + 923780^2 .

It is not a de Polignac number, because 978119022001 - 2³ = 978119021993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978119025001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10834035 + ... + 10923943.

Almost surely, 2^978119022001 is an apocalyptic number.

978119022001 is the 988999-th square number.

978119022001 is the 494500-th centered octagonal number.

It is an amenable number.

978119022001 is a deficient number, since it is larger than the sum of its proper divisors (97015497402).

978119022001 is an frugal number, since it uses more digits than its factorization.

978119022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179840 (or 89920 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 978119022001 in words is "nine hundred seventy-eight billion, one hundred nineteen million, twenty-two thousand, one".