61218476 has 24 divisors (see below), whose sum is σ = 118286784. Its totient is φ = 27489680.

The previous prime is 61218473. The next prime is 61218497. The reversal of 61218476 is 67481216.

It is not an unprimeable number, because it can be changed into a prime (61218473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4730 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (4928616).

Almost surely, 2^61218476 is an apocalyptic number.

It is an amenable number.

61218476 is a deficient number, since it is larger than the sum of its proper divisors (57068308).

61218476 is a wasteful number, since it uses less digits than its factorization.

61218476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16861 (or 16859 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 61218476 is about 7824.2236675596. The cubic root of 61218476 is about 394.1191201916.

The spelling of 61218476 in words is "sixty-one million, two hundred eighteen thousand, four hundred seventy-six".