61310553652 has 12 divisors (see below), whose sum is σ = 113604849540. Its totient is φ = 28852025216.

The previous prime is 61310553641. The next prime is 61310553679. The reversal of 61310553652 is 25635501316.

It can be written as a sum of positive squares in 2 ways, for example, as 39650367376 + 21660186276 = 199124^2 + 147174^2 .

It is a super-2 number, since 2×61310553652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450812827 + ... + 450812962.

It is an arithmetic number, because the mean of its divisors is an integer number (9467070795).

Almost surely, 2^61310553652 is an apocalyptic number.

It is an amenable number.

61310553652 is a deficient number, since it is larger than the sum of its proper divisors (52294295888).

61310553652 is a wasteful number, since it uses less digits than its factorization.

61310553652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901625810 (or 901625808 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 61310553652 in words is "sixty-one billion, three hundred ten million, five hundred fifty-three thousand, six hundred fifty-two".