74181586538132 has 12 divisors (see below), whose sum is σ = 129817874926740. Its totient is φ = 37090765130496.

The previous prime is 74181586538131. The next prime is 74181586538141. The reversal of 74181586538132 is 23183568518147.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29469415673476 + 44712170864656 = 5428574^2 + 6686716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74181586538131) 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, 409757 + ... + 12187332.

It is an arithmetic number, because the mean of its divisors is an integer number (10818156243895).

Almost surely, 2^{74181586538132} is an apocalyptic number.

It is an amenable number.

74181586538132 is a deficient number, since it is larger than the sum of its proper divisors (55636288388608).

74181586538132 is a wasteful number, since it uses less digits than its factorization.

74181586538132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14069290 (or 14069288 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 62.

The spelling of 74181586538132 in words is "seventy-four trillion, one hundred eighty-one billion, five hundred eighty-six million, five hundred thirty-eight thousand, one hundred thirty-two".