78530362782575 has 24 divisors (see below), whose sum is σ = 106698137846400. Its totient is φ = 56861391989600.

The previous prime is 78530362782563. The next prime is 78530362782587. The reversal of 78530362782575 is 57528726303587.

It is an interprime number because it is at equal distance from previous prime (78530362782563) and next prime (78530362782587).

It is not a de Polignac number, because 78530362782575 - 2¹⁸ = 78530362520431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 628935275 + ... + 629060124.

It is an arithmetic number, because the mean of its divisors is an integer number (4445755743600).

Almost surely, 2^{78530362782575} is an apocalyptic number.

78530362782575 is a deficient number, since it is larger than the sum of its proper divisors (28167775063825).

78530362782575 is a wasteful number, since it uses less digits than its factorization.

78530362782575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257995647 (or 1257995642 counting only the distinct ones).

The product of its (nonzero) digits is 592704000, while the sum is 68.

The spelling of 78530362782575 in words is "seventy-eight trillion, five hundred thirty billion, three hundred sixty-two million, seven hundred eighty-two thousand, five hundred seventy-five".