15106621027 has 2 divisors, whose sum is σ = 15106621028. Its totient is φ = 15106621026.

The previous prime is 15106621021. The next prime is 15106621031. The reversal of 15106621027 is 72012660151.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15106621027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15106621027.

It is not a weakly prime, because it can be changed into another prime (15106621021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553310513 + 7553310514.

It is an arithmetic number, because the mean of its divisors is an integer number (7553310514).

Almost surely, 2^15106621027 is an apocalyptic number.

15106621027 is a deficient number, since it is larger than the sum of its proper divisors (1).

15106621027 is an equidigital number, since it uses as much as digits as its factorization.

15106621027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 15106621027 in words is "fifteen billion, one hundred six million, six hundred twenty-one thousand, twenty-seven".