67973037977 has 16 divisors (see below), whose sum is σ = 73895514000. Its totient is φ = 62150022144.

The previous prime is 67973037967. The next prime is 67973037991. The reversal of 67973037977 is 77973037976.

It can be written as a sum of positive squares in 8 ways, for example, as 92467456 + 67880570521 = 9616^2 + 260539^2 .

It is a cyclic number.

It is not a de Polignac number, because 67973037977 - 2¹⁴ = 67973021593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67973037907) 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, 7376549 + ... + 7385757.

It is an arithmetic number, because the mean of its divisors is an integer number (4618469625).

Almost surely, 2^67973037977 is an apocalyptic number.

It is an amenable number.

67973037977 is a deficient number, since it is larger than the sum of its proper divisors (5922476023).

67973037977 is a wasteful number, since it uses less digits than its factorization.

67973037977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14540.

The product of its (nonzero) digits is 73513818, while the sum is 65.

Subtracting 67973037977 from its reverse (77973037976), we obtain a palindrome (9999999999).

The spelling of 67973037977 in words is "sixty-seven billion, nine hundred seventy-three million, thirty-seven thousand, nine hundred seventy-seven".