1912769898 has 16 divisors (see below), whose sum is σ = 4119812256. Its totient is φ = 588544560.

The previous prime is 1912769897. The next prime is 1912769921. The reversal of 1912769898 is 8989672191.

It is not an unprimeable number, because it can be changed into a prime (1912769897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12261268 + ... + 12261423.

It is an arithmetic number, because the mean of its divisors is an integer number (257488266).

Almost surely, 2^1912769898 is an apocalyptic number.

1912769898 is an abundant number, since it is smaller than the sum of its proper divisors (2207042358).

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

1912769898 is a wasteful number, since it uses less digits than its factorization.

1912769898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24522709.

The product of its digits is 3919104, while the sum is 60.

The square root of 1912769898 is about 43735.2249108199. The cubic root of 1912769898 is about 1241.3309283180.

The spelling of 1912769898 in words is "one billion, nine hundred twelve million, seven hundred sixty-nine thousand, eight hundred ninety-eight".