77530986019763 has 4 divisors (see below), whose sum is σ = 79180581467040. Its totient is φ = 75881390572488.

The previous prime is 77530986019757. The next prime is 77530986019771. The reversal of 77530986019763 is 36791068903577.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77530986019763 - 2¹⁸ = 77530985757619 is a prime.

It is a super-2 number, since 2×77530986019763² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77530986019723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824797723568 + ... + 824797723661.

It is an arithmetic number, because the mean of its divisors is an integer number (19795145366760).

Almost surely, 2^{77530986019763} is an apocalyptic number.

77530986019763 is a deficient number, since it is larger than the sum of its proper divisors (1649595447277).

77530986019763 is a wasteful number, since it uses less digits than its factorization.

77530986019763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649595447276.

The product of its (nonzero) digits is 360067680, while the sum is 71.

The spelling of 77530986019763 in words is "seventy-seven trillion, five hundred thirty billion, nine hundred eighty-six million, nineteen thousand, seven hundred sixty-three".