260778228015 has 8 divisors (see below), whose sum is σ = 417245164848. Its totient is φ = 139081721600.

The previous prime is 260778227999. The next prime is 260778228031. The reversal of 260778228015 is 510822877062.

It is an interprime number because it is at equal distance from previous prime (260778227999) and next prime (260778228031).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260778228015 - 2⁴ = 260778227999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8692607586 + ... + 8692607615.

It is an arithmetic number, because the mean of its divisors is an integer number (52155645606).

Almost surely, 2^260778228015 is an apocalyptic number.

260778228015 is a deficient number, since it is larger than the sum of its proper divisors (156466936833).

260778228015 is a wasteful number, since it uses less digits than its factorization.

260778228015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17385215209.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 260778228015 in words is "two hundred sixty billion, seven hundred seventy-eight million, two hundred twenty-eight thousand, fifteen".