78572919744 has 168 divisors, whose sum is σ = 245933805312. Its totient is φ = 23786273280.

The previous prime is 78572919731. The next prime is 78572919773. The reversal of 78572919744 is 44791927587.

78572919744 is a `hidden beast` number, since 7 + 8 + 572 + 9 + 19 + 7 + 44 = 666.

It is a congruent number.

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, 6982987 + ... + 6994229.

Almost surely, 2^78572919744 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 78572919744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122966902656).

78572919744 is an abundant number, since it is smaller than the sum of its proper divisors (167360885568).

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

78572919744 is a wasteful number, since it uses less digits than its factorization.

78572919744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375 (or 12362 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 78572919744 in words is "seventy-eight billion, five hundred seventy-two million, nine hundred nineteen thousand, seven hundred forty-four".