78204130025 has 12 divisors (see below), whose sum is σ = 110826424512. Its totient is φ = 53625689040.

The previous prime is 78204130013. The next prime is 78204130051. The reversal of 78204130025 is 52003140287.

It is not a de Polignac number, because 78204130025 - 2⁴ = 78204130009 is a prime.

It is a super-2 number, since 2×78204130025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78204129973 and 78204130000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223440197 + ... + 223440546.

It is an arithmetic number, because the mean of its divisors is an integer number (9235535376).

Almost surely, 2^78204130025 is an apocalyptic number.

It is an amenable number.

78204130025 is a deficient number, since it is larger than the sum of its proper divisors (32622294487).

78204130025 is a wasteful number, since it uses less digits than its factorization.

78204130025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446880760 (or 446880755 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 78204130025 in words is "seventy-eight billion, two hundred four million, one hundred thirty thousand, twenty-five".