1969081092 has 144 divisors (see below), whose sum is σ = 5646513600. Its totient is φ = 573108480.

The previous prime is 1969081091. The next prime is 1969081109. The reversal of 1969081092 is 2901809691.

It is not an unprimeable number, because it can be changed into a prime (1969081091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3180759 + ... + 3181377.

It is an arithmetic number, because the mean of its divisors is an integer number (39211900).

Almost surely, 2^1969081092 is an apocalyptic number.

1969081092 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 1969081092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2823256800).

1969081092 is an abundant number, since it is smaller than the sum of its proper divisors (3677432508).

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

1969081092 is a wasteful number, since it uses less digits than its factorization.

1969081092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 1969081092 is about 44374.3292005637. The cubic root of 1969081092 is about 1253.3947385475.

The spelling of 1969081092 in words is "one billion, nine hundred sixty-nine million, eighty-one thousand, ninety-two".