78575453671 has 16 divisors (see below), whose sum is σ = 92719122048. Its totient is φ = 65646943200.

The previous prime is 78575453659. The next prime is 78575453683. The reversal of 78575453671 is 17635457587.

It is an interprime number because it is at equal distance from previous prime (78575453659) and next prime (78575453683).

It is a cyclic number.

It is not a de Polignac number, because 78575453671 - 2¹⁹ = 78574929383 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 (78575456671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1177845 + ... + 1242766.

It is an arithmetic number, because the mean of its divisors is an integer number (5794945128).

Almost surely, 2^78575453671 is an apocalyptic number.

78575453671 is a deficient number, since it is larger than the sum of its proper divisors (14143668377).

78575453671 is a wasteful number, since it uses less digits than its factorization.

78575453671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420862.

The product of its digits is 24696000, while the sum is 58.

The spelling of 78575453671 in words is "seventy-eight billion, five hundred seventy-five million, four hundred fifty-three thousand, six hundred seventy-one".