7742159039 has 4 divisors (see below), whose sum is σ = 7829149680. Its totient is φ = 7655168400.

The previous prime is 7742158997. The next prime is 7742159059. The reversal of 7742159039 is 9309512477.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9309512477 = 17 ⋅547618381.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7742159039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7742158984 and 7742159002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7742159059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43495187 + ... + 43495364.

It is an arithmetic number, because the mean of its divisors is an integer number (1957287420).

Almost surely, 2^7742159039 is an apocalyptic number.

7742159039 is a deficient number, since it is larger than the sum of its proper divisors (86990641).

7742159039 is an equidigital number, since it uses as much as digits as its factorization.

7742159039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86990640.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 7742159039 is about 87989.5393725868. The cubic root of 7742159039 is about 1978.2781888055.

The spelling of 7742159039 in words is "seven billion, seven hundred forty-two million, one hundred fifty-nine thousand, thirty-nine".