12015622692938 has 4 divisors (see below), whose sum is σ = 18023434039410. Its totient is φ = 6007811346468.

The previous prime is 12015622692937. The next prime is 12015622692979. The reversal of 12015622692938 is 83929622651021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9583030348609 + 2432592344329 = 3095647^2 + 1559677^2 .

It is not an unprimeable number, because it can be changed into a prime (12015622692937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003905673233 + ... + 3003905673236.

Almost surely, 2^{12015622692938} is an apocalyptic number.

12015622692938 is a deficient number, since it is larger than the sum of its proper divisors (6007811346472).

12015622692938 is an equidigital number, since it uses as much as digits as its factorization.

12015622692938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007811346471.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 12015622692938 in words is "twelve trillion, fifteen billion, six hundred twenty-two million, six hundred ninety-two thousand, nine hundred thirty-eight".