1020071718 has 48 divisors (see below), whose sum is σ = 2347961616. Its totient is φ = 331724160.

The previous prime is 1020071711. The next prime is 1020071737. The reversal of 1020071718 is 8171700201.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1020071691 and 1020071700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020071711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5671 + ... + 45522.

It is an arithmetic number, because the mean of its divisors is an integer number (48915867).

Almost surely, 2^1020071718 is an apocalyptic number.

1020071718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1020071718 is an abundant number, since it is smaller than the sum of its proper divisors (1327889898).

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

1020071718 is an equidigital number, since it uses as much as digits as its factorization.

1020071718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51251 (or 51239 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 1020071718 is about 31938.5616144497. The cubic root of 1020071718 is about 1006.6463014802.

Adding to 1020071718 its reverse (8171700201), we get a palindrome (9191771919).

It can be divided in two parts, 10200 and 71718, that added together give a palindrome (81918).

The spelling of 1020071718 in words is "one billion, twenty million, seventy-one thousand, seven hundred eighteen".