79545649467438 has 384 divisors, whose sum is σ = 226892260048896. Its totient is φ = 19541109772800.

The previous prime is 79545649467437. The next prime is 79545649467457. The reversal of 79545649467438 is 83476494654597.

79545649467438 is a `hidden beast` number, since 7 + 9 + 5 + 4 + 56 + 494 + 6 + 74 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79545649467437) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 365488906 + ... + 365706482.

It is an arithmetic number, because the mean of its divisors is an integer number (590865260544).

Almost surely, 2^{79545649467438} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79545649467438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113446130024448).

79545649467438 is an abundant number, since it is smaller than the sum of its proper divisors (147346610581458).

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

79545649467438 is a wasteful number, since it uses less digits than its factorization.

79545649467438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217828 (or 217825 counting only the distinct ones).

The product of its digits is 21946982400, while the sum is 81.

The spelling of 79545649467438 in words is "seventy-nine trillion, five hundred forty-five billion, six hundred forty-nine million, four hundred sixty-seven thousand, four hundred thirty-eight".