61874530278 has 16 divisors (see below), whose sum is σ = 134998975296. Its totient is φ = 18749857640.

The previous prime is 61874530261. The next prime is 61874530303. The reversal of 61874530278 is 87203547816.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61874530278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468746376 + ... + 468746507.

It is an arithmetic number, because the mean of its divisors is an integer number (8437435956).

Almost surely, 2^61874530278 is an apocalyptic number.

61874530278 is an abundant number, since it is smaller than the sum of its proper divisors (73124445018).

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

61874530278 is a wasteful number, since it uses less digits than its factorization.

61874530278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937492899.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 61874530278 in words is "sixty-one billion, eight hundred seventy-four million, five hundred thirty thousand, two hundred seventy-eight".