1914490566989 has 48 divisors (see below), whose sum is σ = 2687120747136. Its totient is φ = 1339838236800.

The previous prime is 1914490566977. The next prime is 1914490567001. The reversal of 1914490566989 is 9896650944191.

It is an interprime number because it is at equal distance from previous prime (1914490566977) and next prime (1914490567001).

It is not a de Polignac number, because 1914490566989 - 2³² = 1910195599693 is a prime.

It is a super-2 number, since 2×1914490566989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914490566949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3432977 + ... + 3951494.

It is an arithmetic number, because the mean of its divisors is an integer number (55981682232).

Almost surely, 2^{1914490566989} is an apocalyptic number.

It is an amenable number.

1914490566989 is a deficient number, since it is larger than the sum of its proper divisors (772630180147).

1914490566989 is a wasteful number, since it uses less digits than its factorization.

1914490566989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384546 (or 7384539 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 71.

The spelling of 1914490566989 in words is "one trillion, nine hundred fourteen billion, four hundred ninety million, five hundred sixty-six thousand, nine hundred eighty-nine".