1012663880 has 32 divisors (see below), whose sum is σ = 2326976640. Its totient is φ = 396446400.

The previous prime is 1012663853. The next prime is 1012663891. The reversal of 1012663880 is 883662101.

It is a self number, because there is not a number n which added to its sum of digits gives 1012663880.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267446 + ... + 271205.

It is an arithmetic number, because the mean of its divisors is an integer number (72718020).

Almost surely, 2^1012663880 is an apocalyptic number.

1012663880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012663880 is an abundant number, since it is smaller than the sum of its proper divisors (1314312760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012663880 is a wasteful number, since it uses less digits than its factorization.

1012663880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538709 (or 538705 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1012663880 is about 31822.3801749649. The cubic root of 1012663880 is about 1004.2035983348.

The spelling of 1012663880 in words is "one billion, twelve million, six hundred sixty-three thousand, eight hundred eighty".