1148838215019 has 128 divisors (see below), whose sum is σ = 1775941189632. Its totient is φ = 654311831040.

The previous prime is 1148838215011. The next prime is 1148838215033. The reversal of 1148838215019 is 9105128388411.

It is a happy number.

It is not a de Polignac number, because 1148838215019 - 2³ = 1148838215011 is a prime.

It is a super-2 number, since 2×1148838215019² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1148838215011) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2062545889 + ... + 2062546445.

It is an arithmetic number, because the mean of its divisors is an integer number (13874540544).

Almost surely, 2^{1148838215019} is an apocalyptic number.

1148838215019 is a deficient number, since it is larger than the sum of its proper divisors (627102974613).

1148838215019 is a wasteful number, since it uses less digits than its factorization.

1148838215019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 552960, while the sum is 51.

The spelling of 1148838215019 in words is "one trillion, one hundred forty-eight billion, eight hundred thirty-eight million, two hundred fifteen thousand, nineteen".