78295925900 has 72 divisors (see below), whose sum is σ = 181488852720. Its totient is φ = 29215191040.

The previous prime is 78295925881. The next prime is 78295925921. The reversal of 78295925900 is 952959287.

It is a super-2 number, since 2×78295925900² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11690 + ... + 395889.

It is an arithmetic number, because the mean of its divisors is an integer number (2520678510).

Almost surely, 2^78295925900 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 78295925900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90744426360).

78295925900 is an abundant number, since it is smaller than the sum of its proper divisors (103192926820).

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

78295925900 is a wasteful number, since it uses less digits than its factorization.

78295925900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407723 (or 407716 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 56.

The spelling of 78295925900 in words is "seventy-eight billion, two hundred ninety-five million, nine hundred twenty-five thousand, nine hundred".