75212939651 has 2 divisors, whose sum is σ = 75212939652. Its totient is φ = 75212939650.

The previous prime is 75212939623. The next prime is 75212939689. The reversal of 75212939651 is 15693921257.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75212939651 - 2²² = 75208745347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75212939651.

It is not a weakly prime, because it can be changed into another prime (75212939251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37606469825 + 37606469826.

It is an arithmetic number, because the mean of its divisors is an integer number (37606469826).

Almost surely, 2^75212939651 is an apocalyptic number.

75212939651 is a deficient number, since it is larger than the sum of its proper divisors (1).

75212939651 is an equidigital number, since it uses as much as digits as its factorization.

75212939651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 50.

The spelling of 75212939651 in words is "seventy-five billion, two hundred twelve million, nine hundred thirty-nine thousand, six hundred fifty-one".