61307384503 has 2 divisors, whose sum is σ = 61307384504. Its totient is φ = 61307384502.

The previous prime is 61307384477. The next prime is 61307384549. The reversal of 61307384503 is 30548370316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61307384503 - 2⁵ = 61307384471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61307382503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30653692251 + 30653692252.

It is an arithmetic number, because the mean of its divisors is an integer number (30653692252).

Almost surely, 2^61307384503 is an apocalyptic number.

61307384503 is a deficient number, since it is larger than the sum of its proper divisors (1).

61307384503 is an equidigital number, since it uses as much as digits as its factorization.

61307384503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 61307384503 in words is "sixty-one billion, three hundred seven million, three hundred eighty-four thousand, five hundred three".