61029183647 has 2 divisors, whose sum is σ = 61029183648. Its totient is φ = 61029183646.

The previous prime is 61029183617. The next prime is 61029183653. The reversal of 61029183647 is 74638192016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61029183647 is a prime.

It is a super-2 number, since 2×61029183647² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61029183617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30514591823 + 30514591824.

It is an arithmetic number, because the mean of its divisors is an integer number (30514591824).

Almost surely, 2^61029183647 is an apocalyptic number.

61029183647 is a deficient number, since it is larger than the sum of its proper divisors (1).

61029183647 is an equidigital number, since it uses as much as digits as its factorization.

61029183647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 61029183647 in words is "sixty-one billion, twenty-nine million, one hundred eighty-three thousand, six hundred forty-seven".