1015011423989 has 2 divisors, whose sum is σ = 1015011423990. Its totient is φ = 1015011423988.

The previous prime is 1015011423977. The next prime is 1015011424027. The reversal of 1015011423989 is 9893241105101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013424756100 + 1586667889 = 1006690^2 + 39833^2 .

It is a cyclic number.

It is not a de Polignac number, because 1015011423989 - 2¹⁶ = 1015011358453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1015011423889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507505711994 + 507505711995.

It is an arithmetic number, because the mean of its divisors is an integer number (507505711995).

Almost surely, 2^{1015011423989} is an apocalyptic number.

It is an amenable number.

1015011423989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015011423989 is an equidigital number, since it uses as much as digits as its factorization.

1015011423989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 1015011423989 in words is "one trillion, fifteen billion, eleven million, four hundred twenty-three thousand, nine hundred eighty-nine".