1928869814464 has 56 divisors (see below), whose sum is σ = 3832433865216. Its totient is φ = 963217920000.

The previous prime is 1928869814453. The next prime is 1928869814507. The reversal of 1928869814464 is 4644189688291.

It is a super-2 number, since 2×1928869814464² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1928869814393 and 1928869814402.

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, 335978634 + ... + 335984374.

Almost surely, 2^{1928869814464} is an apocalyptic number.

It is an amenable number.

1928869814464 is a deficient number, since it is larger than the sum of its proper divisors (1903564050752).

1928869814464 is a wasteful number, since it uses less digits than its factorization.

1928869814464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11465 (or 11455 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 70.

The spelling of 1928869814464 in words is "one trillion, nine hundred twenty-eight billion, eight hundred sixty-nine million, eight hundred fourteen thousand, four hundred sixty-four".