1240162867876 has 81 divisors (see below), whose sum is σ = 2268050894697. Its totient is φ = 593339932800.

The previous prime is 1240162867873. The next prime is 1240162867927. The reversal of 1240162867876 is 6787682610421.

The square root of 1240162867876 is 1113626.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 39876096100 + 1200286771776 = 199690^2 + 1095576^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240162867876.

It is not an unprimeable number, because it can be changed into a prime (1240162867873) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8323240650 + ... + 8323240798.

Almost surely, 2^{1240162867876} is an apocalyptic number.

1240162867876 is the 1113626-th square number.

It is an amenable number.

1240162867876 is a deficient number, since it is larger than the sum of its proper divisors (1027888026821).

1240162867876 is an equidigital number, since it uses as much as digits as its factorization.

1240162867876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 1240162867876 in words is "one trillion, two hundred forty billion, one hundred sixty-two million, eight hundred sixty-seven thousand, eight hundred seventy-six".