1675999899 has 36 divisors (see below), whose sum is σ = 2920051056. Its totient is φ = 907295904.

The previous prime is 1675999889. The next prime is 1675999981. The reversal of 1675999899 is 9989995761.

It is not a de Polignac number, because 1675999899 - 2⁴ = 1675999883 is a prime.

It is a super-2 number, since 2×1675999899² = 5617951322896020402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1675999879) 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 35 ways as a sum of consecutive naturals, for example, 14104 + ... + 59589.

Almost surely, 2^1675999899 is an apocalyptic number.

1675999899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1675999899 is a deficient number, since it is larger than the sum of its proper divisors (1244051157).

1675999899 is a wasteful number, since it uses less digits than its factorization.

1675999899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73744 (or 73722 counting only the distinct ones).

The product of its digits is 99202320, while the sum is 72.

The square root of 1675999899 is about 40938.9777473742. The cubic root of 1675999899 is about 1187.8401372314.

The spelling of 1675999899 in words is "one billion, six hundred seventy-five million, nine hundred ninety-nine thousand, eight hundred ninety-nine".