1078989251466 has 128 divisors (see below), whose sum is σ = 2567890796544. Its totient is φ = 295755183360.

The previous prime is 1078989251399. The next prime is 1078989251467. The reversal of 1078989251466 is 6641529898701.

It is a junction number, because it is equal to n+sod(n) for n = 1078989251397 and 1078989251406.

It is not an unprimeable number, because it can be changed into a prime (1078989251467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 369895440 + ... + 369898356.

It is an arithmetic number, because the mean of its divisors is an integer number (20061646848).

Almost surely, 2^{1078989251466} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078989251466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283945398272).

1078989251466 is an abundant number, since it is smaller than the sum of its proper divisors (1488901545078).

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

1078989251466 is a wasteful number, since it uses less digits than its factorization.

1078989251466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 1078989251466 in words is "one trillion, seventy-eight billion, nine hundred eighty-nine million, two hundred fifty-one thousand, four hundred sixty-six".