78248011140761 has 16 divisors (see below), whose sum is σ = 97556445895680. Its totient is φ = 60972173742480.

The previous prime is 78248011140743. The next prime is 78248011140763. The reversal of 78248011140761 is 16704111084287.

It is a happy number.

It is not a de Polignac number, because 78248011140761 - 2³⁸ = 77973133233817 is a prime.

It is a super-2 number, since 2×78248011140761² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78248011140763) 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, 13782230 + ... + 18613056.

It is an arithmetic number, because the mean of its divisors is an integer number (6097277868480).

Almost surely, 2^{78248011140761} is an apocalyptic number.

It is an amenable number.

78248011140761 is a deficient number, since it is larger than the sum of its proper divisors (19308434754919).

78248011140761 is a wasteful number, since it uses less digits than its factorization.

78248011140761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041204.

The product of its (nonzero) digits is 602112, while the sum is 50.

The spelling of 78248011140761 in words is "seventy-eight trillion, two hundred forty-eight billion, eleven million, one hundred forty thousand, seven hundred sixty-one".