67431655613461 has 2 divisors, whose sum is σ = 67431655613462. Its totient is φ = 67431655613460.

The previous prime is 67431655613401. The next prime is 67431655613503. The reversal of 67431655613461 is 16431655613476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65207336911236 + 2224318702225 = 8075106^2 + 1491415^2 .

It is a cyclic number.

It is not a de Polignac number, because 67431655613461 - 2⁹ = 67431655612949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67431655613396 and 67431655613405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67431655613401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33715827806730 + 33715827806731.

It is an arithmetic number, because the mean of its divisors is an integer number (33715827806731).

Almost surely, 2^{67431655613461} is an apocalyptic number.

It is an amenable number.

67431655613461 is a deficient number, since it is larger than the sum of its proper divisors (1).

67431655613461 is an equidigital number, since it uses as much as digits as its factorization.

67431655613461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 58.

The spelling of 67431655613461 in words is "sixty-seven trillion, four hundred thirty-one billion, six hundred fifty-five million, six hundred thirteen thousand, four hundred sixty-one".