1916088645 has 8 divisors (see below), whose sum is σ = 3065741856. Its totient is φ = 1021913936.

The previous prime is 1916088631. The next prime is 1916088659. The reversal of 1916088645 is 5468806191.

It is an interprime number because it is at equal distance from previous prime (1916088631) and next prime (1916088659).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916088645 - 2⁹ = 1916088133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1916088594 and 1916088603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63869607 + ... + 63869636.

It is an arithmetic number, because the mean of its divisors is an integer number (383217732).

Almost surely, 2^1916088645 is an apocalyptic number.

1916088645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1916088645 is a deficient number, since it is larger than the sum of its proper divisors (1149653211).

1916088645 is a wasteful number, since it uses less digits than its factorization.

1916088645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127739251.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1916088645 is about 43773.1498181248. The cubic root of 1916088645 is about 1242.0484362958.

The spelling of 1916088645 in words is "one billion, nine hundred sixteen million, eighty-eight thousand, six hundred forty-five".