1145742887887 has 16 divisors (see below), whose sum is σ = 1287626876928. Its totient is φ = 1011544823520.

The previous prime is 1145742887813. The next prime is 1145742887897. The reversal of 1145742887887 is 7887882475411.

It is a cyclic number.

It is not a de Polignac number, because 1145742887887 - 2⁷ = 1145742887759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145742887897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3752962 + ... + 4046752.

It is an arithmetic number, because the mean of its divisors is an integer number (80476679808).

Almost surely, 2^{1145742887887} is an apocalyptic number.

1145742887887 is a deficient number, since it is larger than the sum of its proper divisors (141883989041).

1145742887887 is a wasteful number, since it uses less digits than its factorization.

1145742887887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306870.

The product of its digits is 224788480, while the sum is 70.

The spelling of 1145742887887 in words is "one trillion, one hundred forty-five billion, seven hundred forty-two million, eight hundred eighty-seven thousand, eight hundred eighty-seven".