61562217047 has 4 divisors (see below), whose sum is σ = 61807485096. Its totient is φ = 61316949000.

The previous prime is 61562217037. The next prime is 61562217071. The reversal of 61562217047 is 74071226516.

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

It is a cyclic number.

It is not a de Polignac number, because 61562217047 - 2⁶ = 61562216983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61562216995 and 61562217013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61562217037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122633648 + ... + 122634149.

It is an arithmetic number, because the mean of its divisors is an integer number (15451871274).

Almost surely, 2^61562217047 is an apocalyptic number.

61562217047 is a deficient number, since it is larger than the sum of its proper divisors (245268049).

61562217047 is a wasteful number, since it uses less digits than its factorization.

61562217047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245268048.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 61562217047 in words is "sixty-one billion, five hundred sixty-two million, two hundred seventeen thousand, forty-seven".