1915689655345 has 16 divisors (see below), whose sum is σ = 2512570572288. Its totient is φ = 1395872536320.

The previous prime is 1915689655273. The next prime is 1915689655349. The reversal of 1915689655345 is 5435569865191.

It is not a de Polignac number, because 1915689655345 - 2³⁹ = 1365933841457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1915689655349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363505839 + ... + 363511108.

It is an arithmetic number, because the mean of its divisors is an integer number (157035660768).

Almost surely, 2^{1915689655345} is an apocalyptic number.

It is an amenable number.

1915689655345 is a deficient number, since it is larger than the sum of its proper divisors (596880916943).

1915689655345 is a wasteful number, since it uses less digits than its factorization.

1915689655345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727017000.

The product of its digits is 174960000, while the sum is 67.

The spelling of 1915689655345 in words is "one trillion, nine hundred fifteen billion, six hundred eighty-nine million, six hundred fifty-five thousand, three hundred forty-five".