15027790091 has 2 divisors, whose sum is σ = 15027790092. Its totient is φ = 15027790090.

The previous prime is 15027790073. The next prime is 15027790097. The reversal of 15027790091 is 19009772051.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15027790091 - 2¹⁸ = 15027527947 is a prime.

It is not a weakly prime, because it can be changed into another prime (15027790097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7513895045 + 7513895046.

It is an arithmetic number, because the mean of its divisors is an integer number (7513895046).

Almost surely, 2^15027790091 is an apocalyptic number.

15027790091 is a deficient number, since it is larger than the sum of its proper divisors (1).

15027790091 is an equidigital number, since it uses as much as digits as its factorization.

15027790091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 41.

The spelling of 15027790091 in words is "fifteen billion, twenty-seven million, seven hundred ninety thousand, ninety-one".