61011461563 has 8 divisors (see below), whose sum is σ = 65915924256. Its totient is φ = 56137180800.

The previous prime is 61011461549. The next prime is 61011461573. The reversal of 61011461563 is 36516411016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61011461563 is a prime.

It is a super-3 number, since 3×61011461563³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (61011461573) 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 in 7 ways as a sum of consecutive naturals, for example, 7541278 + ... + 7549363.

It is an arithmetic number, because the mean of its divisors is an integer number (8239490532).

Almost surely, 2^61011461563 is an apocalyptic number.

61011461563 is a deficient number, since it is larger than the sum of its proper divisors (4904462693).

61011461563 is a wasteful number, since it uses less digits than its factorization.

61011461563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15090965.

The product of its (nonzero) digits is 12960, while the sum is 34.

Adding to 61011461563 its reverse (36516411016), we get a palindrome (97527872579).

The spelling of 61011461563 in words is "sixty-one billion, eleven million, four hundred sixty-one thousand, five hundred sixty-three".