1131457311764 has 24 divisors (see below), whose sum is σ = 2132428008648. Its totient is φ = 522194866560.

The previous prime is 1131457311737. The next prime is 1131457311773. The reversal of 1131457311764 is 4671137541311.

It can be written as a sum of positive squares in 4 ways, for example, as 5507124100 + 1125950187664 = 74210^2 + 1061108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444394 + ... + 2085470.

It is an arithmetic number, because the mean of its divisors is an integer number (88851167027).

Almost surely, 2^{1131457311764} is an apocalyptic number.

It is an amenable number.

1131457311764 is a deficient number, since it is larger than the sum of its proper divisors (1000970696884).

1131457311764 is a wasteful number, since it uses less digits than its factorization.

1131457311764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675035 (or 675033 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The spelling of 1131457311764 in words is "one trillion, one hundred thirty-one billion, four hundred fifty-seven million, three hundred eleven thousand, seven hundred sixty-four".