61915000349 has 2 divisors, whose sum is σ = 61915000350. Its totient is φ = 61915000348.

The previous prime is 61915000337. The next prime is 61915000369. The reversal of 61915000349 is 94300051916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58899892249 + 3015108100 = 242693^2 + 54910^2 .

It is a cyclic number.

It is not a de Polignac number, because 61915000349 - 2²⁰ = 61913951773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61915000369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30957500174 + 30957500175.

It is an arithmetic number, because the mean of its divisors is an integer number (30957500175).

Almost surely, 2^61915000349 is an apocalyptic number.

It is an amenable number.

61915000349 is a deficient number, since it is larger than the sum of its proper divisors (1).

61915000349 is an equidigital number, since it uses as much as digits as its factorization.

61915000349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 61915000349 in words is "sixty-one billion, nine hundred fifteen million, three hundred forty-nine", and thus it is an aban number.