78367835579413 has 4 divisors (see below), whose sum is σ = 78395635452960. Its totient is φ = 78340035705868.

The previous prime is 78367835579339. The next prime is 78367835579513. The reversal of 78367835579413 is 31497553876387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78367835579413 - 2¹⁷ = 78367835448341 is a prime.

It is a super-2 number, since 2×78367835579413² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78367835579413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78367835579513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13899932545 + ... + 13899938182.

It is an arithmetic number, because the mean of its divisors is an integer number (19598908863240).

Almost surely, 2^{78367835579413} is an apocalyptic number.

It is an amenable number.

78367835579413 is a deficient number, since it is larger than the sum of its proper divisors (27799873547).

78367835579413 is a wasteful number, since it uses less digits than its factorization.

78367835579413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27799873546.

The product of its digits is 3200601600, while the sum is 76.

The spelling of 78367835579413 in words is "seventy-eight trillion, three hundred sixty-seven billion, eight hundred thirty-five million, five hundred seventy-nine thousand, four hundred thirteen".