2515529278879 has 2 divisors, whose sum is σ = 2515529278880. Its totient is φ = 2515529278878.

The previous prime is 2515529278861. The next prime is 2515529278931. The reversal of 2515529278879 is 9788729255152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2515529278879 - 2¹¹ = 2515529276831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2515529276879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257764639439 + 1257764639440.

It is an arithmetic number, because the mean of its divisors is an integer number (1257764639440).

Almost surely, 2^{2515529278879} is an apocalyptic number.

2515529278879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2515529278879 is an equidigital number, since it uses as much as digits as its factorization.

2515529278879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016000, while the sum is 70.

The spelling of 2515529278879 in words is "two trillion, five hundred fifteen billion, five hundred twenty-nine million, two hundred seventy-eight thousand, eight hundred seventy-nine".