67879791746 has 32 divisors (see below), whose sum is σ = 114556302000. Its totient is φ = 29949292800.

The previous prime is 67879791737. The next prime is 67879791769. The reversal of 67879791746 is 64719797876.

It can be written as a sum of positive squares in 8 ways, for example, as 31020015625 + 36859776121 = 176125^2 + 191989^2 .

It is a super-2 number, since 2×67879791746² (a number of 22 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 67879791746.

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, 369521 + ... + 521828.

Almost surely, 2^67879791746 is an apocalyptic number.

67879791746 is a deficient number, since it is larger than the sum of its proper divisors (46676510254).

67879791746 is a wasteful number, since it uses less digits than its factorization.

67879791746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891494.

The product of its digits is 224042112, while the sum is 71.

The spelling of 67879791746 in words is "sixty-seven billion, eight hundred seventy-nine million, seven hundred ninety-one thousand, seven hundred forty-six".