1968366087 has 24 divisors (see below), whose sum is σ = 2901376608. Its totient is φ = 1285632000.

The previous prime is 1968366077. The next prime is 1968366091. The reversal of 1968366087 is 7806638691.

It is a happy number.

It is not a de Polignac number, because 1968366087 - 2¹² = 1968361991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968366017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89287 + ... + 109127.

It is an arithmetic number, because the mean of its divisors is an integer number (120890692).

Almost surely, 2^1968366087 is an apocalyptic number.

1968366087 is a deficient number, since it is larger than the sum of its proper divisors (933010521).

1968366087 is a wasteful number, since it uses less digits than its factorization.

1968366087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20071 (or 20068 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 1968366087 is about 44366.2719529149. The cubic root of 1968366087 is about 1253.2430109213.

The spelling of 1968366087 in words is "one billion, nine hundred sixty-eight million, three hundred sixty-six thousand, eighty-seven".