78562487437440 has 256 divisors, whose sum is σ = 252879474182400. Its totient is φ = 20744112291840.

The previous prime is 78562487437433. The next prime is 78562487437501. The reversal of 78562487437440 is 4473478426587.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2133614230 + ... + 2133651050.

It is an arithmetic number, because the mean of its divisors is an integer number (987810446025).

Almost surely, 2^{78562487437440} 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 78562487437440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126439737091200).

78562487437440 is an abundant number, since it is smaller than the sum of its proper divisors (174316986744960).

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

78562487437440 is a wasteful number, since it uses less digits than its factorization.

78562487437440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47735 (or 47723 counting only the distinct ones).

The product of its (nonzero) digits is 1011548160, while the sum is 69.

The spelling of 78562487437440 in words is "seventy-eight trillion, five hundred sixty-two billion, four hundred eighty-seven million, four hundred thirty-seven thousand, four hundred forty".