1143634540777 has 4 divisors (see below), whose sum is σ = 1143642545620. Its totient is φ = 1143626535936.

The previous prime is 1143634540747. The next prime is 1143634540819. The reversal of 1143634540777 is 7770454363411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 307399278096 + 836235262681 = 554436^2 + 914459^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143634540777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143634540747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3784152 + ... + 4075177.

It is an arithmetic number, because the mean of its divisors is an integer number (285910636405).

Almost surely, 2^{1143634540777} is an apocalyptic number.

It is an amenable number.

1143634540777 is a deficient number, since it is larger than the sum of its proper divisors (8004843).

1143634540777 is an equidigital number, since it uses as much as digits as its factorization.

1143634540777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004842.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 1143634540777 in words is "one trillion, one hundred forty-three billion, six hundred thirty-four million, five hundred forty thousand, seven hundred seventy-seven".