1914546746638 has 4 divisors (see below), whose sum is σ = 2871820119960. Its totient is φ = 957273373318.

The previous prime is 1914546746597. The next prime is 1914546746687. The reversal of 1914546746638 is 8366476454191.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1914546746638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478636686658 + ... + 478636686661.

It is an arithmetic number, because the mean of its divisors is an integer number (717955029990).

Almost surely, 2^{1914546746638} is an apocalyptic number.

1914546746638 is a deficient number, since it is larger than the sum of its proper divisors (957273373322).

1914546746638 is an equidigital number, since it uses as much as digits as its factorization.

1914546746638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957273373321.

The product of its digits is 104509440, while the sum is 64.

The spelling of 1914546746638 in words is "one trillion, nine hundred fourteen billion, five hundred forty-six million, seven hundred forty-six thousand, six hundred thirty-eight".