78151742140812 has 24 divisors (see below), whose sum is σ = 188642136202800. Its totient is φ = 25152284826816.

The previous prime is 78151742140789. The next prime is 78151742140861. The reversal of 78151742140812 is 21804124715187.

It is a super-2 number, since 2×78151742140812² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112286985487 + ... + 112286986182.

It is an arithmetic number, because the mean of its divisors is an integer number (7860089008450).

Almost surely, 2^{78151742140812} is an apocalyptic number.

It is an amenable number.

78151742140812 is an abundant number, since it is smaller than the sum of its proper divisors (110490394061988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78151742140812 is a wasteful number, since it uses less digits than its factorization.

78151742140812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224573971705 (or 224573971703 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 51.

Adding to 78151742140812 its reverse (21804124715187), we get a palindrome (99955866855999).

The spelling of 78151742140812 in words is "seventy-eight trillion, one hundred fifty-one billion, seven hundred forty-two million, one hundred forty thousand, eight hundred twelve".