1491368468068 has 12 divisors (see below), whose sum is σ = 2641339335600. Its totient is φ = 736700086472.

The previous prime is 1491368468033. The next prime is 1491368468077. The reversal of 1491368468068 is 8608648631941.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246036518 + ... + 2246037181.

It is an arithmetic number, because the mean of its divisors is an integer number (220111611300).

Almost surely, 2^{1491368468068} is an apocalyptic number.

It is an amenable number.

1491368468068 is a deficient number, since it is larger than the sum of its proper divisors (1149970867532).

1491368468068 is a wasteful number, since it uses less digits than its factorization.

1491368468068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492073786 (or 4492073784 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 1491368468068 in words is "one trillion, four hundred ninety-one billion, three hundred sixty-eight million, four hundred sixty-eight thousand, sixty-eight".