77484983631 has 96 divisors (see below), whose sum is σ = 120952258560. Its totient is φ = 43692897600.

The previous prime is 77484983549. The next prime is 77484983647. The reversal of 77484983631 is 13638948477.

It is not a de Polignac number, because 77484983631 - 2¹⁰ = 77484982607 is a prime.

It is a super-2 number, since 2×77484983631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77484985631) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 215835430 + ... + 215835788.

It is an arithmetic number, because the mean of its divisors is an integer number (1259919360).

Almost surely, 2^77484983631 is an apocalyptic number.

77484983631 is a deficient number, since it is larger than the sum of its proper divisors (43467274929).

77484983631 is a wasteful number, since it uses less digits than its factorization.

77484983631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 518 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 60.

The spelling of 77484983631 in words is "seventy-seven billion, four hundred eighty-four million, nine hundred eighty-three thousand, six hundred thirty-one".