61497343151 has 2 divisors, whose sum is σ = 61497343152. Its totient is φ = 61497343150.

The previous prime is 61497343147. The next prime is 61497343183. The reversal of 61497343151 is 15134379416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61497343151 - 2² = 61497343147 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61497343051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30748671575 + 30748671576.

It is an arithmetic number, because the mean of its divisors is an integer number (30748671576).

Almost surely, 2^61497343151 is an apocalyptic number.

61497343151 is a deficient number, since it is larger than the sum of its proper divisors (1).

61497343151 is an equidigital number, since it uses as much as digits as its factorization.

61497343151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The spelling of 61497343151 in words is "sixty-one billion, four hundred ninety-seven million, three hundred forty-three thousand, one hundred fifty-one".