79723380152025 has 27 divisors (see below), whose sum is σ = 142793671892989. Its totient is φ = 42519064650720.

The previous prime is 79723380152023. The next prime is 79723380152063. The reversal of 79723380152025 is 52025108332797.

The square root of 79723380152025 is 8928795.

It is a perfect power (a square), and thus also a powerful number.

79723380152025 is a `hidden beast` number, since 7 + 9 + 7 + 2 + 33 + 80 + 1 + 520 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 48902762288601 + 30820617863424 = 6993051^2 + 5551632^2 .

It is not a de Polignac number, because 79723380152025 - 2¹ = 79723380152023 is a prime.

It is a super-2 number, since 2×79723380152025² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79723380152023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 133634299 + ... + 134229551.

Almost surely, 2^{79723380152025} is an apocalyptic number.

79723380152025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

79723380152025 is the 8928795-th square number.

79723380152025 is the 4464398-th centered octagonal number.

It is an amenable number.

79723380152025 is a deficient number, since it is larger than the sum of its proper divisors (63070291740964).

79723380152025 is an frugal number, since it uses more digits than its factorization.

79723380152025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190522 (or 595261 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 79723380152025 in words is "seventy-nine trillion, seven hundred twenty-three billion, three hundred eighty million, one hundred fifty-two thousand, twenty-five".