1089792512 has 20 divisors (see below), whose sum is σ = 2177457546. Its totient is φ = 544896000.

The previous prime is 1089792499. The next prime is 1089792523. The reversal of 1089792512 is 2152979801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 671017216 + 418775296 = 25904^2 + 20464^2 .

It is a super-2 number, since 2×1089792512² = 2375295438422540288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063739 + ... + 1064762.

Almost surely, 2^1089792512 is an apocalyptic number.

It is an amenable number.

1089792512 is a deficient number, since it is larger than the sum of its proper divisors (1087665034).

1089792512 is an frugal number, since it uses more digits than its factorization.

1089792512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128519 (or 2128503 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 1089792512 is about 33012.0055737303. The cubic root of 1089792512 is about 1029.0771612924.

The spelling of 1089792512 in words is "one billion, eighty-nine million, seven hundred ninety-two thousand, five hundred twelve".