61135414827 has 4 divisors (see below), whose sum is σ = 81513886440. Its totient is φ = 40756943216.

The previous prime is 61135414817. The next prime is 61135414831. The reversal of 61135414827 is 72841453116.

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 61135414827 - 2⁷ = 61135414699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61135414817) 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, 10189235802 + ... + 10189235807.

It is an arithmetic number, because the mean of its divisors is an integer number (20378471610).

Almost surely, 2^61135414827 is an apocalyptic number.

61135414827 is a deficient number, since it is larger than the sum of its proper divisors (20378471613).

61135414827 is a wasteful number, since it uses less digits than its factorization.

61135414827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378471612.

The product of its digits is 161280, while the sum is 42.

The spelling of 61135414827 in words is "sixty-one billion, one hundred thirty-five million, four hundred fourteen thousand, eight hundred twenty-seven".