61774047716 has 6 divisors (see below), whose sum is σ = 108104583510. Its totient is φ = 30887023856.

The previous prime is 61774047707. The next prime is 61774047889.

It is a happy number.

61774047716 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 52624360000 + 9149687716 = 229400^2 + 95654^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7721755961 + ... + 7721755968.

It is an arithmetic number, because the mean of its divisors is an integer number (18017430585).

Almost surely, 2^61774047716 is an apocalyptic number.

It is an amenable number.

61774047716 is a deficient number, since it is larger than the sum of its proper divisors (46330535794).

61774047716 is a wasteful number, since it uses less digits than its factorization.

61774047716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15443511933 (or 15443511931 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 61774047716 in words is "sixty-one billion, seven hundred seventy-four million, forty-seven thousand, seven hundred sixteen".