79652540394 has 192 divisors, whose sum is σ = 208771070976. Its totient is φ = 21473206272.

The previous prime is 79652540393. The next prime is 79652540399. The reversal of 79652540394 is 49304525697.

79652540394 is a `hidden beast` number, since 7 + 9 + 6 + 5 + 2 + 540 + 3 + 94 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 79652540394.

It is not an unprimeable number, because it can be changed into a prime (79652540393) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24758274 + ... + 24761490.

It is an arithmetic number, because the mean of its divisors is an integer number (1087349328).

Almost surely, 2^79652540394 is an apocalyptic number.

79652540394 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79652540394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104385535488).

79652540394 is an abundant number, since it is smaller than the sum of its proper divisors (129118530582).

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

79652540394 is a wasteful number, since it uses less digits than its factorization.

79652540394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3426 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 79652540394 in words is "seventy-nine billion, six hundred fifty-two million, five hundred forty thousand, three hundred ninety-four".