78530826586151 has 4 divisors (see below), whose sum is σ = 81064079056704. Its totient is φ = 75997574115600.

The previous prime is 78530826586141. The next prime is 78530826586159. The reversal of 78530826586151 is 15168562803587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78530826586151 - 2⁶ = 78530826586087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78530826586159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266626235230 + ... + 1266626235291.

It is an arithmetic number, because the mean of its divisors is an integer number (20266019764176).

Almost surely, 2^{78530826586151} is an apocalyptic number.

78530826586151 is a deficient number, since it is larger than the sum of its proper divisors (2533252470553).

78530826586151 is a wasteful number, since it uses less digits than its factorization.

78530826586151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533252470552.

The product of its (nonzero) digits is 96768000, while the sum is 65.

The spelling of 78530826586151 in words is "seventy-eight trillion, five hundred thirty billion, eight hundred twenty-six million, five hundred eighty-six thousand, one hundred fifty-one".