78533707278576 has 160 divisors (see below), whose sum is σ = 231318088980480. Its totient is φ = 22726616774400.

The previous prime is 78533707278469. The next prime is 78533707278647. The reversal of 78533707278576 is 67587270733587.

78533707278576 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78533707278576² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78533707278498 and 78533707278507.

It is a congruent number.

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, 2293491 + ... + 12740781.

It is an arithmetic number, because the mean of its divisors is an integer number (1445738056128).

Almost surely, 2^{78533707278576} 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 78533707278576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115659044490240).

78533707278576 is an abundant number, since it is smaller than the sum of its proper divisors (152784381701904).

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

78533707278576 is a wasteful number, since it uses less digits than its factorization.

78533707278576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447955 (or 10447949 counting only the distinct ones).

The product of its (nonzero) digits is 2904249600, while the sum is 75.

The spelling of 78533707278576 in words is "seventy-eight trillion, five hundred thirty-three billion, seven hundred seven million, two hundred seventy-eight thousand, five hundred seventy-six".