61280078375255 has 8 divisors (see below), whose sum is σ = 73536137973792. Its totient is φ = 49024033417888.

The previous prime is 61280078375239. The next prime is 61280078375291. The reversal of 61280078375255 is 55257387008216.

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 61280078375255 - 2⁴ = 61280078375239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61280078375194 and 61280078375203.

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, 10594517 + ... + 15323313.

It is an arithmetic number, because the mean of its divisors is an integer number (9192017246724).

Almost surely, 2^{61280078375255} is an apocalyptic number.

61280078375255 is a deficient number, since it is larger than the sum of its proper divisors (12256059598537).

61280078375255 is a wasteful number, since it uses less digits than its factorization.

61280078375255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320585.

The product of its (nonzero) digits is 28224000, while the sum is 59.

The spelling of 61280078375255 in words is "sixty-one trillion, two hundred eighty billion, seventy-eight million, three hundred seventy-five thousand, two hundred fifty-five".