77754486936 has 288 divisors, whose sum is σ = 236202765120. Its totient is φ = 21264888960.

The previous prime is 77754486917. The next prime is 77754486937. The reversal of 77754486936 is 63968445777.

It is a super-4 number, since 4×77754486936⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77754486937) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 120924231 + ... + 120924873.

It is an arithmetic number, because the mean of its divisors is an integer number (820148490).

Almost surely, 2^77754486936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77754486936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118101382560).

77754486936 is an abundant number, since it is smaller than the sum of its proper divisors (158448278184).

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

77754486936 is a wasteful number, since it uses less digits than its factorization.

77754486936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 793 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 66.

The spelling of 77754486936 in words is "seventy-seven billion, seven hundred fifty-four million, four hundred eighty-six thousand, nine hundred thirty-six".