1992425849 has 2 divisors, whose sum is σ = 1992425850. Its totient is φ = 1992425848.

The previous prime is 1992425837. The next prime is 1992425951. The reversal of 1992425849 is 9485242991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1429218025 + 563207824 = 37805^2 + 23732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992425849 - 2¹⁶ = 1992360313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1992425849.

It is not a weakly prime, because it can be changed into another prime (1992425819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996212924 + 996212925.

It is an arithmetic number, because the mean of its divisors is an integer number (996212925).

Almost surely, 2^1992425849 is an apocalyptic number.

It is an amenable number.

1992425849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1992425849 is an equidigital number, since it uses as much as digits as its factorization.

1992425849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The square root of 1992425849 is about 44636.5976413974. The cubic root of 1992425849 is about 1258.3285658674.

The spelling of 1992425849 in words is "one billion, nine hundred ninety-two million, four hundred twenty-five thousand, eight hundred forty-nine".