7965742015 has 32 divisors (see below), whose sum is σ = 11955833856. Its totient is φ = 4949717760.

The previous prime is 7965741977. The next prime is 7965742019. The reversal of 7965742015 is 5102475697.

7965742015 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7965742015 - 2¹⁵ = 7965709247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7965742019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87454 + ... + 153556.

It is an arithmetic number, because the mean of its divisors is an integer number (373619808).

Almost surely, 2^7965742015 is an apocalyptic number.

7965742015 is a deficient number, since it is larger than the sum of its proper divisors (3990091841).

7965742015 is a wasteful number, since it uses less digits than its factorization.

7965742015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66439.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 7965742015 is about 89251.0056806084. The cubic root of 7965742015 is about 1997.1410831612.

The spelling of 7965742015 in words is "seven billion, nine hundred sixty-five million, seven hundred forty-two thousand, fifteen".