974189990387 has 2 divisors, whose sum is σ = 974189990388. Its totient is φ = 974189990386.

The previous prime is 974189990383. The next prime is 974189990419. The reversal of 974189990387 is 783099981479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 974189990387 - 2² = 974189990383 is a prime.

It is a super-2 number, since 2×974189990387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (974189990383) 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 as a sum of consecutive naturals, namely, 487094995193 + 487094995194.

It is an arithmetic number, because the mean of its divisors is an integer number (487094995194).

Almost surely, 2^974189990387 is an apocalyptic number.

974189990387 is a deficient number, since it is larger than the sum of its proper divisors (1).

974189990387 is an equidigital number, since it uses as much as digits as its factorization.

974189990387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246903552, while the sum is 74.

The spelling of 974189990387 in words is "nine hundred seventy-four billion, one hundred eighty-nine million, nine hundred ninety thousand, three hundred eighty-seven".