77739311962 has 16 divisors (see below), whose sum is σ = 126127277640. Its totient is φ = 35722999872.

The previous prime is 77739311957. The next prime is 77739311981. The reversal of 77739311962 is 26911393777.

It can be written as a sum of positive squares in 4 ways, for example, as 76082740561 + 1656571401 = 275831^2 + 40701^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6522373 + ... + 6534280.

Almost surely, 2^77739311962 is an apocalyptic number.

77739311962 is a deficient number, since it is larger than the sum of its proper divisors (48387965678).

77739311962 is a wasteful number, since it uses less digits than its factorization.

77739311962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056897.

The product of its digits is 3000564, while the sum is 55.

The spelling of 77739311962 in words is "seventy-seven billion, seven hundred thirty-nine million, three hundred eleven thousand, nine hundred sixty-two".