77051745250 has 32 divisors (see below), whose sum is σ = 145037863152. Its totient is φ = 30650400000.

The previous prime is 77051745223. The next prime is 77051745269. The reversal of 77051745250 is 5254715077.

It can be written as a sum of positive squares in 8 ways, for example, as 1520766009 + 75530979241 = 38997^2 + 274829^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77051745197 and 77051745206.

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 15 ways as a sum of consecutive naturals, for example, 806151 + ... + 896650.

Almost surely, 2^77051745250 is an apocalyptic number.

77051745250 is a deficient number, since it is larger than the sum of its proper divisors (67986117902).

77051745250 is a wasteful number, since it uses less digits than its factorization.

77051745250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702999 (or 1702989 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 77051745250 in words is "seventy-seven billion, fifty-one million, seven hundred forty-five thousand, two hundred fifty".