4278515520115 has 8 divisors (see below), whose sum is σ = 5311260645840. Its totient is φ = 3304784401632.

The previous prime is 4278515520109. The next prime is 4278515520161. The reversal of 4278515520115 is 5110255158724.

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 4278515520115 - 2¹⁹ = 4278514995827 is a prime.

It is a super-2 number, since 2×4278515520115² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14753501649 + ... + 14753501938.

It is an arithmetic number, because the mean of its divisors is an integer number (663907580730).

Almost surely, 2^{4278515520115} is an apocalyptic number.

4278515520115 is a deficient number, since it is larger than the sum of its proper divisors (1032745125725).

4278515520115 is a wasteful number, since it uses less digits than its factorization.

4278515520115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29507003621.

The product of its (nonzero) digits is 560000, while the sum is 46.

The spelling of 4278515520115 in words is "four trillion, two hundred seventy-eight billion, five hundred fifteen million, five hundred twenty thousand, one hundred fifteen".