11857778656132 has 24 divisors (see below), whose sum is σ = 20941838933400. Its totient is φ = 5874397917696.

The previous prime is 11857778656123. The next prime is 11857778656189. The reversal of 11857778656132 is 23165687775811.

It can be written as a sum of positive squares in 4 ways, for example, as 33217249536 + 11824561406596 = 182256^2 + 3438686^2 .

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, 30831594 + ... + 31213822.

It is an arithmetic number, because the mean of its divisors is an integer number (872576622225).

Almost surely, 2^{11857778656132} is an apocalyptic number.

It is an amenable number.

11857778656132 is a deficient number, since it is larger than the sum of its proper divisors (9084060277268).

11857778656132 is a wasteful number, since it uses less digits than its factorization.

11857778656132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453495 (or 453493 counting only the distinct ones).

The product of its digits is 118540800, while the sum is 67.

The spelling of 11857778656132 in words is "eleven trillion, eight hundred fifty-seven billion, seven hundred seventy-eight million, six hundred fifty-six thousand, one hundred thirty-two".