61856795461 has 6 divisors (see below), whose sum is σ = 63328781670. Its totient is φ = 60418263528.

The previous prime is 61856795449. The next prime is 61856795503. The reversal of 61856795461 is 16459765816.

It can be written as a sum of positive squares in only one way, i.e., 52429550625 + 9427244836 = 228975^2 + 97094^2 .

It is not a de Polignac number, because 61856795461 - 2³¹ = 59709311813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61856795396 and 61856795405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61856795261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16725246 + ... + 16728943.

It is an arithmetic number, because the mean of its divisors is an integer number (10554796945).

Almost surely, 2^61856795461 is an apocalyptic number.

It is an amenable number.

61856795461 is a deficient number, since it is larger than the sum of its proper divisors (1471986209).

61856795461 is an equidigital number, since it uses as much as digits as its factorization.

61856795461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33454275 (or 33454232 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The spelling of 61856795461 in words is "sixty-one billion, eight hundred fifty-six million, seven hundred ninety-five thousand, four hundred sixty-one".