61200277842 has 32 divisors (see below), whose sum is σ = 134265628224. Its totient is φ = 18443073600.

The previous prime is 61200277811. The next prime is 61200277843. The reversal of 61200277842 is 24877200216.

61200277842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61200277842.

It is not an unprimeable number, because it can be changed into a prime (61200277843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2549593 + ... + 2573484.

It is an arithmetic number, because the mean of its divisors is an integer number (4195800882).

Almost surely, 2^61200277842 is an apocalyptic number.

61200277842 is an abundant number, since it is smaller than the sum of its proper divisors (73065350382).

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

61200277842 is a wasteful number, since it uses less digits than its factorization.

61200277842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123274.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 61200277842 in words is "sixty-one billion, two hundred million, two hundred seventy-seven thousand, eight hundred forty-two".