78037855488 has 432 divisors, whose sum is σ = 249118632000. Its totient is φ = 24029540352.

The previous prime is 78037855459. The next prime is 78037855499. The reversal of 78037855488 is 88455873087.

78037855488 is a `hidden beast` number, since 7 + 8 + 0 + 3 + 7 + 85 + 548 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290103418 + ... + 290103686.

It is an arithmetic number, because the mean of its divisors is an integer number (576663500).

Almost surely, 2^78037855488 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 78037855488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124559316000).

78037855488 is an abundant number, since it is smaller than the sum of its proper divisors (171080776512).

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

78037855488 is a wasteful number, since it uses less digits than its factorization.

78037855488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 63.

The spelling of 78037855488 in words is "seventy-eight billion, thirty-seven million, eight hundred fifty-five thousand, four hundred eighty-eight".