15232217783 has 2 divisors, whose sum is σ = 15232217784. Its totient is φ = 15232217782.

The previous prime is 15232217747. The next prime is 15232217801. The reversal of 15232217783 is 38771223251.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15232217783 - 2⁸ = 15232217527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15232217783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15232217983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7616108891 + 7616108892.

It is an arithmetic number, because the mean of its divisors is an integer number (7616108892).

Almost surely, 2^15232217783 is an apocalyptic number.

15232217783 is a deficient number, since it is larger than the sum of its proper divisors (1).

15232217783 is an equidigital number, since it uses as much as digits as its factorization.

15232217783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The spelling of 15232217783 in words is "fifteen billion, two hundred thirty-two million, two hundred seventeen thousand, seven hundred eighty-three".