78673854541 has 16 divisors (see below), whose sum is σ = 82908241920. Its totient is φ = 74556616320.

The previous prime is 78673854503. The next prime is 78673854767. The reversal of 78673854541 is 14545837687.

It is a cyclic number.

It is not a de Polignac number, because 78673854541 - 2³³ = 70083919949 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 (78673854841) 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, 878100 + ... + 963538.

It is an arithmetic number, because the mean of its divisors is an integer number (5181765120).

Almost surely, 2^78673854541 is an apocalyptic number.

It is an amenable number.

78673854541 is a deficient number, since it is larger than the sum of its proper divisors (4234387379).

78673854541 is a wasteful number, since it uses less digits than its factorization.

78673854541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86124.

The product of its digits is 22579200, while the sum is 58.

The spelling of 78673854541 in words is "seventy-eight billion, six hundred seventy-three million, eight hundred fifty-four thousand, five hundred forty-one".