78175040768742 has 16 divisors (see below), whose sum is σ = 165547145157552. Its totient is φ = 24525502986240.

The previous prime is 78175040768719. The next prime is 78175040768771. The reversal of 78175040768742 is 24786704057187.

It is a super-2 number, since 2×78175040768742² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 383210984059 + ... + 383210984262.

It is an arithmetic number, because the mean of its divisors is an integer number (10346696572347).

Almost surely, 2^{78175040768742} is an apocalyptic number.

78175040768742 is an abundant number, since it is smaller than the sum of its proper divisors (87372104388810).

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

78175040768742 is a wasteful number, since it uses less digits than its factorization.

78175040768742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766421968343.

The product of its (nonzero) digits is 147517440, while the sum is 66.

The spelling of 78175040768742 in words is "seventy-eight trillion, one hundred seventy-five billion, forty million, seven hundred sixty-eight thousand, seven hundred forty-two".