1790468657 has 2 divisors, whose sum is σ = 1790468658. Its totient is φ = 1790468656.

The previous prime is 1790468651. The next prime is 1790468677. The reversal of 1790468657 is 7568640971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1606486561 + 183982096 = 40081^2 + 13564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1790468657 - 2⁶ = 1790468593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1790468599 and 1790468608.

It is not a weakly prime, because it can be changed into another prime (1790468651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895234328 + 895234329.

It is an arithmetic number, because the mean of its divisors is an integer number (895234329).

Almost surely, 2^1790468657 is an apocalyptic number.

It is an amenable number.

1790468657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790468657 is an equidigital number, since it uses as much as digits as its factorization.

1790468657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 1790468657 is about 42313.9298222228. The cubic root of 1790468657 is about 1214.2895035973.

The spelling of 1790468657 in words is "one billion, seven hundred ninety million, four hundred sixty-eight thousand, six hundred fifty-seven".