39561797452 has 12 divisors (see below), whose sum is σ = 73305683640. Its totient is φ = 18617316416.

The previous prime is 39561797351. The next prime is 39561797459. The reversal of 39561797452 is 25479716593.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39561797459) 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, 290895502 + ... + 290895637.

It is an arithmetic number, because the mean of its divisors is an integer number (6108806970).

Almost surely, 2^39561797452 is an apocalyptic number.

It is an amenable number.

39561797452 is a deficient number, since it is larger than the sum of its proper divisors (33743886188).

39561797452 is a wasteful number, since it uses less digits than its factorization.

39561797452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581791160 (or 581791158 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 58.

The spelling of 39561797452 in words is "thirty-nine billion, five hundred sixty-one million, seven hundred ninety-seven thousand, four hundred fifty-two".