61218300682 has 16 divisors (see below), whose sum is σ = 114486172992. Its totient is φ = 23851285920.

The previous prime is 61218300667. The next prime is 61218300691. The reversal of 61218300682 is 28600381216.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198760563 + ... + 198760870.

It is an arithmetic number, because the mean of its divisors is an integer number (7155385812).

Almost surely, 2^61218300682 is an apocalyptic number.

61218300682 is a deficient number, since it is larger than the sum of its proper divisors (53267872310).

61218300682 is a wasteful number, since it uses less digits than its factorization.

61218300682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397521453.

The product of its (nonzero) digits is 27648, while the sum is 37.

Adding to 61218300682 its reverse (28600381216), we get a palindrome (89818681898).

The spelling of 61218300682 in words is "sixty-one billion, two hundred eighteen million, three hundred thousand, six hundred eighty-two".