61775436020502 has 8 divisors (see below), whose sum is σ = 123550872041016. Its totient is φ = 20591812006832.

The previous prime is 61775436020443. The next prime is 61775436020609. The reversal of 61775436020502 is 20502063457716.

It is a sphenic number, since it is the product of 3 distinct primes.

61775436020502 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147953001703 + ... + 5147953001714.

It is an arithmetic number, because the mean of its divisors is an integer number (15443859005127).

Almost surely, 2^{61775436020502} is an apocalyptic number.

61775436020502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61775436020502 is a wasteful number, since it uses less digits than its factorization.

61775436020502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10295906003422.

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 61775436020502 in words is "sixty-one trillion, seven hundred seventy-five billion, four hundred thirty-six million, twenty thousand, five hundred two".