61227026461 has 4 divisors (see below), whose sum is σ = 61234297024. Its totient is φ = 61219755900.

The previous prime is 61227026431. The next prime is 61227026479. The reversal of 61227026461 is 16462072216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61227026461 - 2¹¹ = 61227024413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61227026461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61227026431) 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, 3622635 + ... + 3639496.

It is an arithmetic number, because the mean of its divisors is an integer number (15308574256).

Almost surely, 2^61227026461 is an apocalyptic number.

It is an amenable number.

61227026461 is a deficient number, since it is larger than the sum of its proper divisors (7270563).

61227026461 is an equidigital number, since it uses as much as digits as its factorization.

61227026461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270562.

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 61227026461 its reverse (16462072216), we get a palindrome (77689098677).

The spelling of 61227026461 in words is "sixty-one billion, two hundred twenty-seven million, twenty-six thousand, four hundred sixty-one".