61214303629 has 2 divisors, whose sum is σ = 61214303630. Its totient is φ = 61214303628.

The previous prime is 61214303621. The next prime is 61214303687. The reversal of 61214303629 is 92630341216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48137237604 + 13077066025 = 219402^2 + 114355^2 .

It is a cyclic number.

It is not a de Polignac number, because 61214303629 - 2³ = 61214303621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61214303621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30607151814 + 30607151815.

It is an arithmetic number, because the mean of its divisors is an integer number (30607151815).

Almost surely, 2^61214303629 is an apocalyptic number.

It is an amenable number.

61214303629 is a deficient number, since it is larger than the sum of its proper divisors (1).

61214303629 is an equidigital number, since it uses as much as digits as its factorization.

61214303629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 61214303629 in words is "sixty-one billion, two hundred fourteen million, three hundred three thousand, six hundred twenty-nine".