61522274507 has 2 divisors, whose sum is σ = 61522274508. Its totient is φ = 61522274506.

The previous prime is 61522274503. The next prime is 61522274537. The reversal of 61522274507 is 70547222516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61522274507 - 2² = 61522274503 is a prime.

It is not a weakly prime, because it can be changed into another prime (61522274503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30761137253 + 30761137254.

It is an arithmetic number, because the mean of its divisors is an integer number (30761137254).

Almost surely, 2^61522274507 is an apocalyptic number.

61522274507 is a deficient number, since it is larger than the sum of its proper divisors (1).

61522274507 is an equidigital number, since it uses as much as digits as its factorization.

61522274507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 61522274507 in words is "sixty-one billion, five hundred twenty-two million, two hundred seventy-four thousand, five hundred seven".