61418204514 has 72 divisors (see below), whose sum is σ = 141070954752. Its totient is φ = 19306591920.

The previous prime is 61418204483. The next prime is 61418204521. The reversal of 61418204514 is 41540281416.

61418204514 is a `hidden beast` number, since 61 + 4 + 1 + 82 + 0 + 4 + 514 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 630639 + ... + 721485.

It is an arithmetic number, because the mean of its divisors is an integer number (1959318816).

Almost surely, 2^61418204514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61418204514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70535477376).

61418204514 is an abundant number, since it is smaller than the sum of its proper divisors (79652750238).

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

61418204514 is a wasteful number, since it uses less digits than its factorization.

61418204514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90972 (or 90946 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 61418204514 in words is "sixty-one billion, four hundred eighteen million, two hundred four thousand, five hundred fourteen".