1969216512 has 88 divisors (see below), whose sum is σ = 5264163456. Its totient is φ = 654471168.

The previous prime is 1969216499. The next prime is 1969216517. The reversal of 1969216512 is 2156129691.

It is a super-2 number, since 2×1969216512² = 7755627342266892288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969216517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360173 + ... + 1361619.

Almost surely, 2^1969216512 is an apocalyptic number.

1969216512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1969216512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2632081728).

1969216512 is an abundant number, since it is smaller than the sum of its proper divisors (3294946944).

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

1969216512 is a wasteful number, since it uses less digits than its factorization.

1969216512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1895 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The square root of 1969216512 is about 44375.8550565507. The cubic root of 1969216512 is about 1253.4234712095.

The spelling of 1969216512 in words is "one billion, nine hundred sixty-nine million, two hundred sixteen thousand, five hundred twelve".