1969081090 has 16 divisors (see below), whose sum is σ = 3597247872. Its totient is φ = 775876464.

The previous prime is 1969081073. The next prime is 1969081091. The reversal of 1969081090 is 901809691.

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 7 ways as a sum of consecutive naturals, for example, 1468794 + ... + 1470133.

It is an arithmetic number, because the mean of its divisors is an integer number (224827992).

Almost surely, 2^1969081090 is an apocalyptic number.

1969081090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1969081090 is a deficient number, since it is larger than the sum of its proper divisors (1628166782).

1969081090 is a wasteful number, since it uses less digits than its factorization.

1969081090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939001.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 1969081090 is about 44374.3291780281. The cubic root of 1969081090 is about 1253.3947381231.

The spelling of 1969081090 in words is "one billion, nine hundred sixty-nine million, eighty-one thousand, ninety".