77453712000 has 768 divisors, whose sum is σ = 331956144000. Its totient is φ = 17698867200.

The previous prime is 77453711987. The next prime is 77453712001. The reversal of 77453712000 is 21735477.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (77453712001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21166171 + ... + 21169829.

Almost surely, 2^77453712000 is an apocalyptic number.

77453712000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77453712000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165978072000).

77453712000 is an abundant number, since it is smaller than the sum of its proper divisors (254502432000).

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

77453712000 is a wasteful number, since it uses less digits than its factorization.

77453712000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The spelling of 77453712000 in words is "seventy-seven billion, four hundred fifty-three million, seven hundred twelve thousand".