1798797128 has 16 divisors (see below), whose sum is σ = 3374216880. Its totient is φ = 899005968.

The previous prime is 1798797109. The next prime is 1798797131. The reversal of 1798797128 is 8217978971.

It is a super-2 number, since 2×1798797128² = 6471342215402096768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29126 + ... + 66677.

It is an arithmetic number, because the mean of its divisors is an integer number (210888555).

Almost surely, 2^1798797128 is an apocalyptic number.

It is an amenable number.

1798797128 is a deficient number, since it is larger than the sum of its proper divisors (1575419752).

1798797128 is a wasteful number, since it uses less digits than its factorization.

1798797128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98156 (or 98152 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 59.

The square root of 1798797128 is about 42412.2285196145. The cubic root of 1798797128 is about 1216.1693716785.

The spelling of 1798797128 in words is "one billion, seven hundred ninety-eight million, seven hundred ninety-seven thousand, one hundred twenty-eight".