1780148281468 has 12 divisors (see below), whose sum is σ = 3115270445392. Its totient is φ = 890071011360.

The previous prime is 1780148281459. The next prime is 1780148281501. The reversal of 1780148281468 is 8641828410871.

It is a congruent number.

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, 899113 + ... + 2090143.

Almost surely, 2^{1780148281468} is an apocalyptic number.

It is an amenable number.

1780148281468 is a deficient number, since it is larger than the sum of its proper divisors (1335122163924).

1780148281468 is a wasteful number, since it uses less digits than its factorization.

1780148281468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564692 (or 1564690 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 58.

The spelling of 1780148281468 in words is "one trillion, seven hundred eighty billion, one hundred forty-eight million, two hundred eighty-one thousand, four hundred sixty-eight".