61105005049 has 8 divisors (see below), whose sum is σ = 66742210080. Its totient is φ = 55481500800.

The previous prime is 61105005029. The next prime is 61105005103. The reversal of 61105005049 is 94050050116.

61105005049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61105005049 - 2²¹ = 61102907897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61105005049.

It is not an unprimeable number, because it can be changed into a prime (61105005029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3415864 + ... + 3433705.

It is an arithmetic number, because the mean of its divisors is an integer number (8342776260).

Almost surely, 2^61105005049 is an apocalyptic number.

It is an amenable number.

61105005049 is a deficient number, since it is larger than the sum of its proper divisors (5637205031).

61105005049 is a wasteful number, since it uses less digits than its factorization.

61105005049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850391.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 61105005049 in words is "sixty-one billion, one hundred five million, five thousand, forty-nine".