1002061147777 has 8 divisors (see below), whose sum is σ = 1021496244264. Its totient is φ = 982645617408.

The previous prime is 1002061147727. The next prime is 1002061147781. The reversal of 1002061147777 is 7777411602001.

It can be written as a sum of positive squares in 4 ways, for example, as 512654568001 + 489406579776 = 715999^2 + 699576^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002061147777 - 2²⁷ = 1001926930049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002061147727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4788088 + ... + 4992985.

It is an arithmetic number, because the mean of its divisors is an integer number (127687030533).

Almost surely, 2^{1002061147777} is an apocalyptic number.

It is an amenable number.

1002061147777 is a deficient number, since it is larger than the sum of its proper divisors (19435096487).

1002061147777 is an equidigital number, since it uses as much as digits as its factorization.

1002061147777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9783059.

The product of its (nonzero) digits is 115248, while the sum is 43.

Adding to 1002061147777 its reverse (7777411602001), we get a palindrome (8779472749778).

The spelling of 1002061147777 in words is "one trillion, two billion, sixty-one million, one hundred forty-seven thousand, seven hundred seventy-seven".