61299468563 has 8 divisors (see below), whose sum is σ = 61554512832. Its totient is φ = 61044875496.

The previous prime is 61299468551. The next prime is 61299468583. The reversal of 61299468563 is 36586499216.

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

It is a cyclic number.

It is not a de Polignac number, because 61299468563 - 2⁶ = 61299468499 is a prime.

It is a super-2 number, since 2×61299468563² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61299468583) 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 7 ways as a sum of consecutive naturals, for example, 160856 + ... + 385322.

It is an arithmetic number, because the mean of its divisors is an integer number (7694314104).

Almost surely, 2^61299468563 is an apocalyptic number.

61299468563 is a deficient number, since it is larger than the sum of its proper divisors (255044269).

61299468563 is a wasteful number, since it uses less digits than its factorization.

61299468563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225601.

The product of its digits is 16796160, while the sum is 59.

The spelling of 61299468563 in words is "sixty-one billion, two hundred ninety-nine million, four hundred sixty-eight thousand, five hundred sixty-three".