77039982481 has 8 divisors (see below), whose sum is σ = 96049848384. Its totient is φ = 60031155120.

The previous prime is 77039982473. The next prime is 77039982521. The reversal of 77039982481 is 18428993077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77039982481 - 2³ = 77039982473 is a prime.

It is a super-4 number, since 4×77039982481⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (77039982421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500259550 + ... + 500259703.

It is an arithmetic number, because the mean of its divisors is an integer number (12006231048).

Almost surely, 2^77039982481 is an apocalyptic number.

It is an amenable number.

77039982481 is a deficient number, since it is larger than the sum of its proper divisors (19009865903).

77039982481 is a wasteful number, since it uses less digits than its factorization.

77039982481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000519271.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 77039982481 in words is "seventy-seven billion, thirty-nine million, nine hundred eighty-two thousand, four hundred eighty-one".