61418486 has 4 divisors (see below), whose sum is σ = 92127732. Its totient is φ = 30709242.

The previous prime is 61418453. The next prime is 61418509. The reversal of 61418486 is 68481416.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15354620 + ... + 15354623.

It is an arithmetic number, because the mean of its divisors is an integer number (23031933).

Almost surely, 2^61418486 is an apocalyptic number.

61418486 is a deficient number, since it is larger than the sum of its proper divisors (30709246).

61418486 is a wasteful number, since it uses less digits than its factorization.

61418486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30709245.

The product of its digits is 36864, while the sum is 38.

The square root of 61418486 is about 7836.9947046046. The cubic root of 61418486 is about 394.5478691492.

The spelling of 61418486 in words is "sixty-one million, four hundred eighteen thousand, four hundred eighty-six".