61258948361 has 8 divisors (see below), whose sum is σ = 67754180424. Its totient is φ = 55018431360.

The previous prime is 61258948357. The next prime is 61258948381. The reversal of 61258948361 is 16384985216.

It can be written as a sum of positive squares in 4 ways, for example, as 109077136 + 61149871225 = 10444^2 + 247285^2 .

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 61258948361 - 2² = 61258948357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61258948381) 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, 63678260 + ... + 63679221.

It is an arithmetic number, because the mean of its divisors is an integer number (8469272553).

Almost surely, 2^61258948361 is an apocalyptic number.

It is an amenable number.

61258948361 is a deficient number, since it is larger than the sum of its proper divisors (6495232063).

61258948361 is a wasteful number, since it uses less digits than its factorization.

61258948361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127357531.

The product of its digits is 2488320, while the sum is 53.

The spelling of 61258948361 in words is "sixty-one billion, two hundred fifty-eight million, nine hundred forty-eight thousand, three hundred sixty-one".