1127789690 has 32 divisors (see below), whose sum is σ = 2152215360. Its totient is φ = 424030464.

The previous prime is 1127789657. The next prime is 1127789713. The reversal of 1127789690 is 969877211.

It is a super-3 number, since 3×1127789690³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142169 + ... + 149891.

It is an arithmetic number, because the mean of its divisors is an integer number (67256730).

Almost surely, 2^1127789690 is an apocalyptic number.

1127789690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1127789690 is a deficient number, since it is larger than the sum of its proper divisors (1024425670).

1127789690 is a wasteful number, since it uses less digits than its factorization.

1127789690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8606.

The product of its (nonzero) digits is 381024, while the sum is 50.

The square root of 1127789690 is about 33582.5801569802. The cubic root of 1127789690 is about 1040.9008743701.

The spelling of 1127789690 in words is "one billion, one hundred twenty-seven million, seven hundred eighty-nine thousand, six hundred ninety".