61349800471 has 2 divisors, whose sum is σ = 61349800472. Its totient is φ = 61349800470.

The previous prime is 61349800453. The next prime is 61349800483. The reversal of 61349800471 is 17400894316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61349800471 - 2¹¹ = 61349798423 is a prime.

It is a super-3 number, since 3×61349800471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61349800271) 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, 30674900235 + 30674900236.

It is an arithmetic number, because the mean of its divisors is an integer number (30674900236).

Almost surely, 2^61349800471 is an apocalyptic number.

61349800471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61349800471 is an equidigital number, since it uses as much as digits as its factorization.

61349800471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 61349800471 in words is "sixty-one billion, three hundred forty-nine million, eight hundred thousand, four hundred seventy-one".