1968154607 has 2 divisors, whose sum is σ = 1968154608. Its totient is φ = 1968154606.

The previous prime is 1968154603. The next prime is 1968154613. The reversal of 1968154607 is 7064518691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1968154607 - 2² = 1968154603 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1968154603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984077303 + 984077304.

It is an arithmetic number, because the mean of its divisors is an integer number (984077304).

Almost surely, 2^1968154607 is an apocalyptic number.

1968154607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968154607 is an equidigital number, since it uses as much as digits as its factorization.

1968154607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1968154607 is about 44363.8885468801. Note that the first 3 decimals coincide. The cubic root of 1968154607 is about 1253.1981267699.

The spelling of 1968154607 in words is "one billion, nine hundred sixty-eight million, one hundred fifty-four thousand, six hundred seven".