1142587949761 has 2 divisors, whose sum is σ = 1142587949762. Its totient is φ = 1142587949760.

The previous prime is 1142587949747. The next prime is 1142587949771. The reversal of 1142587949761 is 1679497852411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 724132921600 + 418455028161 = 850960^2 + 646881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142587949761 - 2⁵ = 1142587949729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142587949693 and 1142587949702.

It is not a weakly prime, because it can be changed into another prime (1142587949771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571293974880 + 571293974881.

It is an arithmetic number, because the mean of its divisors is an integer number (571293974881).

Almost surely, 2^{1142587949761} is an apocalyptic number.

It is an amenable number.

1142587949761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142587949761 is an equidigital number, since it uses as much as digits as its factorization.

1142587949761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 64.

The spelling of 1142587949761 in words is "one trillion, one hundred forty-two billion, five hundred eighty-seven million, nine hundred forty-nine thousand, seven hundred sixty-one".