78240161710 has 32 divisors (see below), whose sum is σ = 141823975680. Its totient is φ = 31076145408.

The previous prime is 78240161687. The next prime is 78240161723. The reversal of 78240161710 is 1716104287.

It is a super-2 number, since 2×78240161710² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78240161710.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371619 + ... + 1427521.

It is an arithmetic number, because the mean of its divisors is an integer number (4431999240).

Almost surely, 2^78240161710 is an apocalyptic number.

78240161710 is a deficient number, since it is larger than the sum of its proper divisors (63583813970).

78240161710 is a wasteful number, since it uses less digits than its factorization.

78240161710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56892.

The product of its (nonzero) digits is 18816, while the sum is 37.

Adding to 78240161710 its reverse (1716104287), we get a palindrome (79956265997).

The spelling of 78240161710 in words is "seventy-eight billion, two hundred forty million, one hundred sixty-one thousand, seven hundred ten".