77433157536 has 96 divisors (see below), whose sum is σ = 244525800960. Its totient is φ = 20959347456.

The previous prime is 77433157531. The next prime is 77433157537. The reversal of 77433157536 is 63575133477.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (77433157531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019546 + ... + 3045081.

It is an arithmetic number, because the mean of its divisors is an integer number (2547143760).

Almost surely, 2^77433157536 is an apocalyptic number.

77433157536 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77433157536 is an abundant number, since it is smaller than the sum of its proper divisors (167092643424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77433157536 is a wasteful number, since it uses less digits than its factorization.

77433157536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064666 (or 6064658 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 51.

The spelling of 77433157536 in words is "seventy-seven billion, four hundred thirty-three million, one hundred fifty-seven thousand, five hundred thirty-six".