61070757911 has 4 divisors (see below), whose sum is σ = 61078109112. Its totient is φ = 61063406712.

The previous prime is 61070757871. The next prime is 61070757941. The reversal of 61070757911 is 11975707016.

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 61070757911 - 2¹⁴ = 61070741527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61070757941) 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, 3663125 + ... + 3679758.

It is an arithmetic number, because the mean of its divisors is an integer number (15269527278).

Almost surely, 2^61070757911 is an apocalyptic number.

61070757911 is a deficient number, since it is larger than the sum of its proper divisors (7351201).

61070757911 is an equidigital number, since it uses as much as digits as its factorization.

61070757911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351200.

The product of its (nonzero) digits is 92610, while the sum is 44.

The spelling of 61070757911 in words is "sixty-one billion, seventy million, seven hundred fifty-seven thousand, nine hundred eleven".