61226373385049 has 4 divisors (see below), whose sum is σ = 61249769021364. Its totient is φ = 61202977748736.

The previous prime is 61226373385019. The next prime is 61226373385117. The reversal of 61226373385049 is 94058337362216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59097963750400 + 2128409634649 = 7687520^2 + 1458907^2 .

It is a cyclic number.

It is not a de Polignac number, because 61226373385049 - 2⁸ = 61226373384793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61226373385019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11697814232 + ... + 11697819465.

It is an arithmetic number, because the mean of its divisors is an integer number (15312442255341).

It is a 1-persistent number, because it is pandigital, but 2⋅61226373385049 = 122452746770098 is not.

Almost surely, 2^{61226373385049} is an apocalyptic number.

It is an amenable number.

61226373385049 is a deficient number, since it is larger than the sum of its proper divisors (23395636315).

61226373385049 is a wasteful number, since it uses less digits than its factorization.

61226373385049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23395636314.

The product of its (nonzero) digits is 39191040, while the sum is 59.

The spelling of 61226373385049 in words is "sixty-one trillion, two hundred twenty-six billion, three hundred seventy-three million, three hundred eighty-five thousand, forty-nine".