61270251333461 has 4 divisors (see below), whose sum is σ = 61272637922892. Its totient is φ = 61267864744032.

The previous prime is 61270251333427. The next prime is 61270251333497. The reversal of 61270251333461 is 16433315207216.

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 30469627204900 + 30800624128561 = 5519930^2 + 5549831^2 .

It is a cyclic number.

It is not a de Polignac number, because 61270251333461 - 2⁶ = 61270251333397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61270251332461) 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, 1193256206 + ... + 1193307551.

It is an arithmetic number, because the mean of its divisors is an integer number (15318159480723).

Almost surely, 2^{61270251333461} is an apocalyptic number.

It is an amenable number.

61270251333461 is a deficient number, since it is larger than the sum of its proper divisors (2386589431).

61270251333461 is a wasteful number, since it uses less digits than its factorization.

61270251333461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386589430.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 61270251333461 in words is "sixty-one trillion, two hundred seventy billion, two hundred fifty-one million, three hundred thirty-three thousand, four hundred sixty-one".