1015973284961 has 2 divisors, whose sum is σ = 1015973284962. Its totient is φ = 1015973284960.

The previous prime is 1015973284951. The next prime is 1015973284967. The reversal of 1015973284961 is 1694823795101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 996273478225 + 19699806736 = 998135^2 + 140356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015973284961 - 2¹⁰ = 1015973283937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1015973284897 and 1015973284906.

It is not a weakly prime, because it can be changed into another prime (1015973284967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507986642480 + 507986642481.

It is an arithmetic number, because the mean of its divisors is an integer number (507986642481).

It is a 1-persistent number, because it is pandigital, but 2⋅1015973284961 = 2031946569922 is not.

Almost surely, 2^{1015973284961} is an apocalyptic number.

It is an amenable number.

1015973284961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015973284961 is an equidigital number, since it uses as much as digits as its factorization.

1015973284961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 1015973284961 in words is "one trillion, fifteen billion, nine hundred seventy-three million, two hundred eighty-four thousand, nine hundred sixty-one".