61630004441 has 2 divisors, whose sum is σ = 61630004442. Its totient is φ = 61630004440.

The previous prime is 61630004437. The next prime is 61630004467. The reversal of 61630004441 is 14440003616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59946625600 + 1683378841 = 244840^2 + 41029^2 .

It is a cyclic number.

It is not a de Polignac number, because 61630004441 - 2² = 61630004437 is a prime.

It is not a weakly prime, because it can be changed into another prime (61630004741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30815002220 + 30815002221.

It is an arithmetic number, because the mean of its divisors is an integer number (30815002221).

Almost surely, 2^61630004441 is an apocalyptic number.

It is an amenable number.

61630004441 is a deficient number, since it is larger than the sum of its proper divisors (1).

61630004441 is an equidigital number, since it uses as much as digits as its factorization.

61630004441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 61630004441 in words is "sixty-one billion, six hundred thirty million, four thousand, four hundred forty-one".