78130755653 has 16 divisors (see below), whose sum is σ = 80650252800. Its totient is φ = 75650889600.

The previous prime is 78130755587. The next prime is 78130755679. The reversal of 78130755653 is 35655703187.

It is a cyclic number.

It is not a de Polignac number, because 78130755653 - 2¹⁶ = 78130690117 is a prime.

It is a super-2 number, since 2×78130755653² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78130755683) 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, 15778328 + ... + 15783278.

It is an arithmetic number, because the mean of its divisors is an integer number (5040640800).

Almost surely, 2^78130755653 is an apocalyptic number.

It is an amenable number.

78130755653 is a deficient number, since it is larger than the sum of its proper divisors (2519497147).

78130755653 is a wasteful number, since it uses less digits than its factorization.

78130755653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852.

The product of its (nonzero) digits is 2646000, while the sum is 50.

The spelling of 78130755653 in words is "seventy-eight billion, one hundred thirty million, seven hundred fifty-five thousand, six hundred fifty-three".