61515010607 has 2 divisors, whose sum is σ = 61515010608. Its totient is φ = 61515010606.

The previous prime is 61515010573. The next prime is 61515010631. The reversal of 61515010607 is 70601051516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61515010607 - 2²² = 61510816303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61515010657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30757505303 + 30757505304.

It is an arithmetic number, because the mean of its divisors is an integer number (30757505304).

Almost surely, 2^61515010607 is an apocalyptic number.

61515010607 is a deficient number, since it is larger than the sum of its proper divisors (1).

61515010607 is an equidigital number, since it uses as much as digits as its factorization.

61515010607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 61515010607 in words is "sixty-one billion, five hundred fifteen million, ten thousand, six hundred seven".