77031046739 has 8 divisors (see below), whose sum is σ = 80695992000. Its totient is φ = 73433348352.

The previous prime is 77031046717. The next prime is 77031046777. The reversal of 77031046739 is 93764013077.

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 77031046739 - 2¹² = 77031042643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77031046693 and 77031046702.

It is not an unprimeable number, because it can be changed into a prime (77031046709) 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, 16809374 + ... + 16813955.

It is an arithmetic number, because the mean of its divisors is an integer number (10086999000).

Almost surely, 2^77031046739 is an apocalyptic number.

77031046739 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

77031046739 is a deficient number, since it is larger than the sum of its proper divisors (3664945261).

77031046739 is a wasteful number, since it uses less digits than its factorization.

77031046739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33623437.

The product of its (nonzero) digits is 666792, while the sum is 47.

The spelling of 77031046739 in words is "seventy-seven billion, thirty-one million, forty-six thousand, seven hundred thirty-nine".