61039601783 has 2 divisors, whose sum is σ = 61039601784. Its totient is φ = 61039601782.

The previous prime is 61039601729. The next prime is 61039601827. The reversal of 61039601783 is 38710693016.

It is an a-pointer prime, because the next prime (61039601827) can be obtained adding 61039601783 to its sum of digits (44).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61039601783 - 2¹⁰ = 61039600759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61039601083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30519800891 + 30519800892.

It is an arithmetic number, because the mean of its divisors is an integer number (30519800892).

Almost surely, 2^61039601783 is an apocalyptic number.

61039601783 is a deficient number, since it is larger than the sum of its proper divisors (1).

61039601783 is an equidigital number, since it uses as much as digits as its factorization.

61039601783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 61039601783 in words is "sixty-one billion, thirty-nine million, six hundred one thousand, seven hundred eighty-three".