61469972211 has 8 divisors (see below), whose sum is σ = 82239690960. Its totient is φ = 40840117472.

The previous prime is 61469972209. The next prime is 61469972219. The reversal of 61469972211 is 11227996416.

It is a happy number.

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 61469972211 - 2¹ = 61469972209 is a prime.

It is a super-2 number, since 2×61469972211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61469972219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34964976 + ... + 34966733.

It is an arithmetic number, because the mean of its divisors is an integer number (10279961370).

Almost surely, 2^61469972211 is an apocalyptic number.

61469972211 is a deficient number, since it is larger than the sum of its proper divisors (20769718749).

61469972211 is a wasteful number, since it uses less digits than its factorization.

61469972211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69932005.

The product of its digits is 326592, while the sum is 48.

The spelling of 61469972211 in words is "sixty-one billion, four hundred sixty-nine million, nine hundred seventy-two thousand, two hundred eleven".