77350029128 has 16 divisors (see below), whose sum is σ = 145921069680. Its totient is φ = 38437743888.

The previous prime is 77350029103. The next prime is 77350029131. The reversal of 77350029128 is 82192005377.

It is a super-2 number, since 2×77350029128² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29657450 + ... + 29660057.

It is an arithmetic number, because the mean of its divisors is an integer number (9120066855).

Almost surely, 2^77350029128 is an apocalyptic number.

It is an amenable number.

77350029128 is a deficient number, since it is larger than the sum of its proper divisors (68571040552).

77350029128 is a wasteful number, since it uses less digits than its factorization.

77350029128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59317676 (or 59317672 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 77350029128 in words is "seventy-seven billion, three hundred fifty million, twenty-nine thousand, one hundred twenty-eight".