61883535687761 has 8 divisors (see below), whose sum is σ = 65564365982184. Its totient is φ = 58207218983680.

The previous prime is 61883535687707. The next prime is 61883535687763. The reversal of 61883535687761 is 16778653538816.

It can be written as a sum of positive squares in 4 ways, for example, as 35773796454400 + 26109739233361 = 5981120^2 + 5109769^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61883535687761 - 2³⁰ = 61882461945937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61883535687763) 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, 1128369350 + ... + 1128424191.

It is an arithmetic number, because the mean of its divisors is an integer number (8195545747773).

Almost surely, 2^{61883535687761} is an apocalyptic number.

It is an amenable number.

61883535687761 is a deficient number, since it is larger than the sum of its proper divisors (3680830294423).

61883535687761 is a wasteful number, since it uses less digits than its factorization.

61883535687761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256795171.

The product of its digits is 1219276800, while the sum is 74.

The spelling of 61883535687761 in words is "sixty-one trillion, eight hundred eighty-three billion, five hundred thirty-five million, six hundred eighty-seven thousand, seven hundred sixty-one".