67474945492 has 12 divisors (see below), whose sum is σ = 118307801556. Its totient is φ = 33672716480.

The previous prime is 67474945481. The next prime is 67474945541. The reversal of 67474945492 is 29454947476.

It can be written as a sum of positive squares in 2 ways, for example, as 36356574276 + 31118371216 = 190674^2 + 176404^2 .

It is a super-2 number, since 2×67474945492² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 67474945492.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16186723 + ... + 16190890.

It is an arithmetic number, because the mean of its divisors is an integer number (9858983463).

Almost surely, 2^67474945492 is an apocalyptic number.

It is an amenable number.

67474945492 is a deficient number, since it is larger than the sum of its proper divisors (50832856064).

67474945492 is a wasteful number, since it uses less digits than its factorization.

67474945492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32378138 (or 32378136 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 61.

The spelling of 67474945492 in words is "sixty-seven billion, four hundred seventy-four million, nine hundred forty-five thousand, four hundred ninety-two".