78958341701 has 4 divisors (see below), whose sum is σ = 78959867532. Its totient is φ = 78956815872.

The previous prime is 78958341691. The next prime is 78958341739. The reversal of 78958341701 is 10714385987.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43097344801 + 35860996900 = 207599^2 + 189370^2 .

It is a cyclic number.

It is not a de Polignac number, because 78958341701 - 2³⁴ = 61778472517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78958341751) 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, 682466 + ... + 789731.

It is an arithmetic number, because the mean of its divisors is an integer number (19739966883).

Almost surely, 2^78958341701 is an apocalyptic number.

It is an amenable number.

78958341701 is a deficient number, since it is larger than the sum of its proper divisors (1525831).

78958341701 is a wasteful number, since it uses less digits than its factorization.

78958341701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525830.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 78958341701 in words is "seventy-eight billion, nine hundred fifty-eight million, three hundred forty-one thousand, seven hundred one".