67478714947 has 16 divisors (see below), whose sum is σ = 82553299200. Its totient is φ = 53866015200.

The previous prime is 67478714903. The next prime is 67478714981. The reversal of 67478714947 is 74941787476.

It is a cyclic number.

It is not a de Polignac number, because 67478714947 - 2⁷ = 67478714819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67478714647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4291804 + ... + 4307497.

It is an arithmetic number, because the mean of its divisors is an integer number (5159581200).

Almost surely, 2^67478714947 is an apocalyptic number.

67478714947 is a deficient number, since it is larger than the sum of its proper divisors (15074584253).

67478714947 is a wasteful number, since it uses less digits than its factorization.

67478714947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599386.

The product of its digits is 66382848, while the sum is 64.

The spelling of 67478714947 in words is "sixty-seven billion, four hundred seventy-eight million, seven hundred fourteen thousand, nine hundred forty-seven".