61718274 has 20 divisors (see below), whose sum is σ = 138295014. Its totient is φ = 20572704.

The previous prime is 61718273. The next prime is 61718297. The reversal of 61718274 is 47281716.

61718274 is a `hidden beast` number, since 617 + 18 + 27 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34751025 + 26967249 = 5895^2 + 5193^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61718273) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 190327 + ... + 190650.

Almost surely, 2^61718274 is an apocalyptic number.

61718274 is an abundant number, since it is smaller than the sum of its proper divisors (76576740).

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

61718274 is a wasteful number, since it uses less digits than its factorization.

61718274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380991 (or 380982 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 61718274 is about 7856.0978863555. The cubic root of 61718274 is about 395.1887662629.

The spelling of 61718274 in words is "sixty-one million, seven hundred eighteen thousand, two hundred seventy-four".