742879271778 has 16 divisors (see below), whose sum is σ = 1698009764160. Its totient is φ = 212251220496.

The previous prime is 742879271759. The next prime is 742879271803. The reversal of 742879271778 is 877172978247.

It is a super-2 number, since 2×742879271778² (a number of 25 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, 8843800813 + ... + 8843800896.

It is an arithmetic number, because the mean of its divisors is an integer number (106125610260).

Almost surely, 2^742879271778 is an apocalyptic number.

742879271778 is an abundant number, since it is smaller than the sum of its proper divisors (955130492382).

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

742879271778 is a wasteful number, since it uses less digits than its factorization.

742879271778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17687601721.

The product of its digits is 154893312, while the sum is 69.

The spelling of 742879271778 in words is "seven hundred forty-two billion, eight hundred seventy-nine million, two hundred seventy-one thousand, seven hundred seventy-eight".