77880753307 has 32 divisors (see below), whose sum is σ = 94080430080. Its totient is φ = 63026203680.

The previous prime is 77880753289. The next prime is 77880753317. The reversal of 77880753307 is 70335708877.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77880753307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77880753317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21098332 + ... + 21102022.

It is an arithmetic number, because the mean of its divisors is an integer number (2940013440).

Almost surely, 2^77880753307 is an apocalyptic number.

77880753307 is a deficient number, since it is larger than the sum of its proper divisors (16199676773).

77880753307 is a wasteful number, since it uses less digits than its factorization.

77880753307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383.

The product of its (nonzero) digits is 6914880, while the sum is 55.

The spelling of 77880753307 in words is "seventy-seven billion, eight hundred eighty million, seven hundred fifty-three thousand, three hundred seven".