61372147326811 has 2 divisors, whose sum is σ = 61372147326812. Its totient is φ = 61372147326810.

The previous prime is 61372147326799. The next prime is 61372147326821. The reversal of 61372147326811 is 11862374127316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61372147326811 - 2¹⁷ = 61372147195739 is a prime.

It is not a weakly prime, because it can be changed into another prime (61372147326821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30686073663405 + 30686073663406.

It is an arithmetic number, because the mean of its divisors is an integer number (30686073663406).

Almost surely, 2^{61372147326811} is an apocalyptic number.

61372147326811 is a deficient number, since it is larger than the sum of its proper divisors (1).

61372147326811 is an equidigital number, since it uses as much as digits as its factorization.

61372147326811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The spelling of 61372147326811 in words is "sixty-one trillion, three hundred seventy-two billion, one hundred forty-seven million, three hundred twenty-six thousand, eight hundred eleven".