1129901168490 has 64 divisors (see below), whose sum is σ = 2799769190400. Its totient is φ = 291532173120.

The previous prime is 1129901168477. The next prime is 1129901168497. The reversal of 1129901168490 is 948611099211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1129901168497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4916161 + ... + 5140859.

It is an arithmetic number, because the mean of its divisors is an integer number (43746393600).

Almost surely, 2^{1129901168490} is an apocalyptic number.

1129901168490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129901168490 is an abundant number, since it is smaller than the sum of its proper divisors (1669868021910).

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

1129901168490 is a wasteful number, since it uses less digits than its factorization.

1129901168490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230147.

The product of its (nonzero) digits is 279936, while the sum is 51.

The spelling of 1129901168490 in words is "one trillion, one hundred twenty-nine billion, nine hundred one million, one hundred sixty-eight thousand, four hundred ninety".