61246202421 has 8 divisors (see below), whose sum is σ = 81665327520. Its totient is φ = 40828939472.

The previous prime is 61246202417. The next prime is 61246202431. The reversal of 61246202421 is 12420264216.

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 61246202421 - 2² = 61246202417 is a prime.

It is a super-2 number, since 2×61246202421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61246202431) 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, 386895 + ... + 521708.

It is an arithmetic number, because the mean of its divisors is an integer number (10208165940).

Almost surely, 2^61246202421 is an apocalyptic number.

It is an amenable number.

61246202421 is a deficient number, since it is larger than the sum of its proper divisors (20419125099).

61246202421 is a wasteful number, since it uses less digits than its factorization.

61246202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931075.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 61246202421 its reverse (12420264216), we get a palindrome (73666466637).

The spelling of 61246202421 in words is "sixty-one billion, two hundred forty-six million, two hundred two thousand, four hundred twenty-one".