61000510771 has 4 divisors (see below), whose sum is σ = 61053417832. Its totient is φ = 60947603712.

The previous prime is 61000510757. The next prime is 61000510793. The reversal of 61000510771 is 17701500016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61000510771 - 2²⁵ = 60966956339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61000510721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26451801 + ... + 26454106.

It is an arithmetic number, because the mean of its divisors is an integer number (15263354458).

Almost surely, 2^61000510771 is an apocalyptic number.

61000510771 is a deficient number, since it is larger than the sum of its proper divisors (52907061).

61000510771 is a wasteful number, since it uses less digits than its factorization.

61000510771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52907060.

The product of its (nonzero) digits is 1470, while the sum is 28.

The spelling of 61000510771 in words is "sixty-one billion, five hundred ten thousand, seven hundred seventy-one".