77743158512 has 10 divisors (see below), whose sum is σ = 150627369648. Its totient is φ = 38871579248.

The previous prime is 77743158511. The next prime is 77743158529. The reversal of 77743158512 is 21585134777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77743158511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2429473688 + ... + 2429473719.

Almost surely, 2^77743158512 is an apocalyptic number.

It is an amenable number.

77743158512 is a deficient number, since it is larger than the sum of its proper divisors (72884211136).

77743158512 is a wasteful number, since it uses less digits than its factorization.

77743158512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858947415 (or 4858947409 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 50.

The spelling of 77743158512 in words is "seventy-seven billion, seven hundred forty-three million, one hundred fifty-eight thousand, five hundred twelve".