77486401080 has 768 divisors, whose sum is σ = 295985664000. Its totient is φ = 17541089280.

The previous prime is 77486401043. The next prime is 77486401099. The reversal of 77486401080 is 8010468477.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 870633676 + ... + 870633764.

It is an arithmetic number, because the mean of its divisors is an integer number (385398000).

Almost surely, 2^77486401080 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 77486401080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147992832000).

77486401080 is an abundant number, since it is smaller than the sum of its proper divisors (218499262920).

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

77486401080 is a wasteful number, since it uses less digits than its factorization.

77486401080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 77486401080 in words is "seventy-seven billion, four hundred eighty-six million, four hundred one thousand, eighty".