2542039979 has 16 divisors (see below), whose sum is σ = 2703888000. Its totient is φ = 2385849984.

The previous prime is 2542039967. The next prime is 2542039993. The reversal of 2542039979 is 9799302452.

It is a de Polignac number, because none of the positive numbers 2^k-2542039979 is a prime.

It is a super-3 number, since 3×2542039979³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542039999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196829 + ... + 209345.

It is an arithmetic number, because the mean of its divisors is an integer number (168993000).

Almost surely, 2^2542039979 is an apocalyptic number.

2542039979 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2542039979 is a deficient number, since it is larger than the sum of its proper divisors (161848021).

2542039979 is a wasteful number, since it uses less digits than its factorization.

2542039979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 2542039979 is about 50418.6471357572. The cubic root of 2542039979 is about 1364.7741631056.

The spelling of 2542039979 in words is "two billion, five hundred forty-two million, thirty-nine thousand, nine hundred seventy-nine".