15242707489 has 8 divisors (see below), whose sum is σ = 15269682600. Its totient is φ = 15215751936.

The previous prime is 15242707483. The next prime is 15242707523. The reversal of 15242707489 is 98470724251.

It can be written as a sum of positive squares in 4 ways, for example, as 2239182400 + 13003525089 = 47320^2 + 114033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15242707489 - 2⁹ = 15242706977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15242707483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062607 + ... + 3067579.

It is an arithmetic number, because the mean of its divisors is an integer number (1908710325).

Almost surely, 2^15242707489 is an apocalyptic number.

It is an amenable number.

15242707489 is a deficient number, since it is larger than the sum of its proper divisors (26975111).

15242707489 is an equidigital number, since it uses as much as digits as its factorization.

15242707489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 15242707489 in words is "fifteen billion, two hundred forty-two million, seven hundred seven thousand, four hundred eighty-nine".