39121312292 has 6 divisors (see below), whose sum is σ = 68462296518. Its totient is φ = 19560656144.

The previous prime is 39121312289. The next prime is 39121312319. The reversal of 39121312292 is 29221312193.

It can be written as a sum of positive squares in only one way, i.e., 35685476836 + 3435835456 = 188906^2 + 58616^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890164033 + ... + 4890164040.

It is an arithmetic number, because the mean of its divisors is an integer number (11410382753).

Almost surely, 2^39121312292 is an apocalyptic number.

It is an amenable number.

39121312292 is a deficient number, since it is larger than the sum of its proper divisors (29340984226).

39121312292 is a wasteful number, since it uses less digits than its factorization.

39121312292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9780328077 (or 9780328075 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

Subtracting from 39121312292 its reverse (29221312193), we obtain a palindrome (9900000099).

The spelling of 39121312292 in words is "thirty-nine billion, one hundred twenty-one million, three hundred twelve thousand, two hundred ninety-two".