1468529991 has 24 divisors (see below), whose sum is σ = 2154387456. Its totient is φ = 963750480.

The previous prime is 1468529987. The next prime is 1468530017. The reversal of 1468529991 is 1999258641.

1468529991 is a `hidden beast` number, since 1 + 468 + 5 + 2 + 99 + 91 = 666.

It is not a de Polignac number, because 1468529991 - 2² = 1468529987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1468529941) 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, 550126 + ... + 552788.

It is an arithmetic number, because the mean of its divisors is an integer number (89766144).

Almost surely, 2^1468529991 is an apocalyptic number.

1468529991 is a deficient number, since it is larger than the sum of its proper divisors (685857465).

1468529991 is a wasteful number, since it uses less digits than its factorization.

1468529991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603 (or 3600 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 1468529991 is about 38321.4038234509. The cubic root of 1468529991 is about 1136.6522259565.

The spelling of 1468529991 in words is "one billion, four hundred sixty-eight million, five hundred twenty-nine thousand, nine hundred ninety-one".