1922954742997 has 8 divisors (see below), whose sum is σ = 1960602690200. Its totient is φ = 1885670544384.

The previous prime is 1922954742937. The next prime is 1922954743009. The reversal of 1922954742997 is 7992474592291.

It can be written as a sum of positive squares in 4 ways, for example, as 234758661361 + 1688196081636 = 484519^2 + 1299306^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1922954742997 is a prime.

It is a super-2 number, since 2×1922954742997² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922954742937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90926472 + ... + 90947617.

It is an arithmetic number, because the mean of its divisors is an integer number (245075336275).

Almost surely, 2^{1922954742997} is an apocalyptic number.

It is an amenable number.

1922954742997 is a deficient number, since it is larger than the sum of its proper divisors (37647947203).

1922954742997 is a wasteful number, since it uses less digits than its factorization.

1922954742997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181874295.

The product of its digits is 205752960, while the sum is 70.

The spelling of 1922954742997 in words is "one trillion, nine hundred twenty-two billion, nine hundred fifty-four million, seven hundred forty-two thousand, nine hundred ninety-seven".