61278116848 has 40 divisors (see below), whose sum is σ = 132268096800. Its totient is φ = 27306956544.

The previous prime is 61278116833. The next prime is 61278116869. The reversal of 61278116848 is 84861187216.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 61278116795 and 61278116804.

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, 5073388 + ... + 5085451.

It is an arithmetic number, because the mean of its divisors is an integer number (3306702420).

Almost surely, 2^61278116848 is an apocalyptic number.

It is an amenable number.

61278116848 is an abundant number, since it is smaller than the sum of its proper divisors (70989979952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61278116848 is a wasteful number, since it uses less digits than its factorization.

61278116848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10158889 (or 10158883 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 52.

The spelling of 61278116848 in words is "sixty-one billion, two hundred seventy-eight million, one hundred sixteen thousand, eight hundred forty-eight".