1145868188877 has 32 divisors (see below), whose sum is σ = 1700112243200. Its totient is φ = 762774465024.

The previous prime is 1145868188867. The next prime is 1145868188879. The reversal of 1145868188877 is 7788818685411.

1145868188877 is a `hidden beast` number, since 11 + 458 + 6 + 8 + 1 + 88 + 87 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1145868188877 is a prime.

It is a super-2 number, since 2×1145868188877² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145868188879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69994149 + ... + 70010517.

It is an arithmetic number, because the mean of its divisors is an integer number (53128507600).

Almost surely, 2^{1145868188877} is an apocalyptic number.

It is an amenable number.

1145868188877 is a deficient number, since it is larger than the sum of its proper divisors (554244054323).

1145868188877 is a wasteful number, since it uses less digits than its factorization.

1145868188877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20082 (or 20076 counting only the distinct ones).

The product of its digits is 192675840, while the sum is 72.

The spelling of 1145868188877 in words is "one trillion, one hundred forty-five billion, eight hundred sixty-eight million, one hundred eighty-eight thousand, eight hundred seventy-seven".