61116739074 has 24 divisors (see below), whose sum is σ = 133591460652. Its totient is φ = 20191960320.

The previous prime is 61116739051. The next prime is 61116739081. The reversal of 61116739074 is 47093761116.

It can be written as a sum of positive squares in 2 ways, for example, as 61005542049 + 111197025 = 246993^2 + 10545^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15021747 + ... + 15025814.

Almost surely, 2^61116739074 is an apocalyptic number.

61116739074 is an abundant number, since it is smaller than the sum of its proper divisors (72474721578).

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

61116739074 is a wasteful number, since it uses less digits than its factorization.

61116739074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30047682 (or 30047679 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 61116739074 in words is "sixty-one billion, one hundred sixteen million, seven hundred thirty-nine thousand, seventy-four".