78225195719580 has 192 divisors, whose sum is σ = 269639703180288. Its totient is φ = 16500760104960.

The previous prime is 78225195719557. The next prime is 78225195719617. The reversal of 78225195719580 is 8591759152287.

It is a super-2 number, since 2×78225195719580² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21466759 + ... + 24844961.

It is an arithmetic number, because the mean of its divisors is an integer number (1404373454064).

Almost surely, 2^{78225195719580} is an apocalyptic number.

78225195719580 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78225195719580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134819851590144).

78225195719580 is an abundant number, since it is smaller than the sum of its proper divisors (191414507460708).

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

78225195719580 is a wasteful number, since it uses less digits than its factorization.

78225195719580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382476 (or 3382474 counting only the distinct ones).

The product of its (nonzero) digits is 127008000, while the sum is 69.

The spelling of 78225195719580 in words is "seventy-eight trillion, two hundred twenty-five billion, one hundred ninety-five million, seven hundred nineteen thousand, five hundred eighty".