61290589873 has 8 divisors (see below), whose sum is σ = 63108924840. Its totient is φ = 59480772480.

The previous prime is 61290589859. The next prime is 61290589883. The reversal of 61290589873 is 37898509216.

It can be written as a sum of positive squares in 4 ways, for example, as 9241361424 + 52049228449 = 96132^2 + 228143^2 .

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 61290589873 - 2²¹ = 61288492721 is a prime.

It is a super-2 number, since 2×61290589873² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61290589883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2114788 + ... + 2143573.

It is an arithmetic number, because the mean of its divisors is an integer number (7888615605).

Almost surely, 2^61290589873 is an apocalyptic number.

It is an amenable number.

61290589873 is a deficient number, since it is larger than the sum of its proper divisors (1818334967).

61290589873 is a wasteful number, since it uses less digits than its factorization.

61290589873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258787.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 61290589873 in words is "sixty-one billion, two hundred ninety million, five hundred eighty-nine thousand, eight hundred seventy-three".