1026478785 has 16 divisors (see below), whose sum is σ = 1738976256. Its totient is φ = 515251968.

The previous prime is 1026478771. The next prime is 1026478787. The reversal of 1026478785 is 5878746201.

It is not a de Polignac number, because 1026478785 - 2⁷ = 1026478657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1026478787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2012449 + ... + 2012958.

It is an arithmetic number, because the mean of its divisors is an integer number (108686016).

Almost surely, 2^1026478785 is an apocalyptic number.

1026478785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1026478785 is a deficient number, since it is larger than the sum of its proper divisors (712497471).

1026478785 is a wasteful number, since it uses less digits than its factorization.

1026478785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025432.

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 1026478785 is about 32038.7076050205. The cubic root of 1026478785 is about 1008.7494849126.

The spelling of 1026478785 in words is "one billion, twenty-six million, four hundred seventy-eight thousand, seven hundred eighty-five".