1929678970816 has 28 divisors (see below), whose sum is σ = 3952729508800. Its totient is φ = 933715630080.

The previous prime is 1929678970811. The next prime is 1929678970819. The reversal of 1929678970816 is 6180798769291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1929678970811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486308241 + ... + 486312208.

Almost surely, 2^{1929678970816} is an apocalyptic number.

1929678970816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1929678970816 is an abundant number, since it is smaller than the sum of its proper divisors (2023050537984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1929678970816 is an equidigital number, since it uses as much as digits as its factorization.

1929678970816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972620492 (or 972620482 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 73.

The spelling of 1929678970816 in words is "one trillion, nine hundred twenty-nine billion, six hundred seventy-eight million, nine hundred seventy thousand, eight hundred sixteen".