1988048011 has 32 divisors (see below), whose sum is σ = 2154147840. Its totient is φ = 1831593600.

The previous prime is 1988047981. The next prime is 1988048059. The reversal of 1988048011 is 1108408891.

It is a cyclic number.

It is not a de Polignac number, because 1988048011 - 2¹⁵ = 1988015243 is a prime.

It is a super-2 number, since 2×1988048011² = 7904669788082112242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1988048311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11491521 + ... + 11491693.

It is an arithmetic number, because the mean of its divisors is an integer number (67317120).

Almost surely, 2^1988048011 is an apocalyptic number.

1988048011 is a deficient number, since it is larger than the sum of its proper divisors (166099829).

1988048011 is a wasteful number, since it uses less digits than its factorization.

1988048011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 18432, while the sum is 40.

The square root of 1988048011 is about 44587.5320128845. The cubic root of 1988048011 is about 1257.4062733706.

The spelling of 1988048011 in words is "one billion, nine hundred eighty-eight million, forty-eight thousand, eleven".