78501253376 has 288 divisors, whose sum is σ = 202013392896. Its totient is φ = 29611008000.

The previous prime is 78501253367. The next prime is 78501253427. The reversal of 78501253376 is 67335210587.

It is a self number, because there is not a number n which added to its sum of digits gives 78501253376.

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, 51273731 + ... + 51275261.

It is an arithmetic number, because the mean of its divisors is an integer number (701435392).

Almost surely, 2^78501253376 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 78501253376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101006696448).

78501253376 is an abundant number, since it is smaller than the sum of its proper divisors (123512139520).

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

78501253376 is a wasteful number, since it uses less digits than its factorization.

78501253376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 78501253376 in words is "seventy-eight billion, five hundred one million, two hundred fifty-three thousand, three hundred seventy-six".