68997249530 has 16 divisors (see below), whose sum is σ = 135485508384. Its totient is φ = 25089908880.

The previous prime is 68997249521. The next prime is 68997249571. The reversal of 68997249530 is 3594279986.

It is a happy number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 313623752 + ... + 313623971.

It is an arithmetic number, because the mean of its divisors is an integer number (8467844274).

Almost surely, 2^68997249530 is an apocalyptic number.

68997249530 is a deficient number, since it is larger than the sum of its proper divisors (66488258854).

68997249530 is a wasteful number, since it uses less digits than its factorization.

68997249530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627247741.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 68997249530 in words is "sixty-eight billion, nine hundred ninety-seven million, two hundred forty-nine thousand, five hundred thirty".