61057366547 has 2 divisors, whose sum is σ = 61057366548. Its totient is φ = 61057366546.

The previous prime is 61057366519. The next prime is 61057366607. The reversal of 61057366547 is 74566375016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61057366547 - 2¹² = 61057362451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61057366495 and 61057366504.

It is not a weakly prime, because it can be changed into another prime (61057336547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30528683273 + 30528683274.

It is an arithmetic number, because the mean of its divisors is an integer number (30528683274).

Almost surely, 2^61057366547 is an apocalyptic number.

61057366547 is a deficient number, since it is larger than the sum of its proper divisors (1).

61057366547 is an equidigital number, since it uses as much as digits as its factorization.

61057366547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 61057366547 in words is "sixty-one billion, fifty-seven million, three hundred sixty-six thousand, five hundred forty-seven".