61228576331 has 8 divisors (see below), whose sum is σ = 69408912720. Its totient is φ = 53544017952.

The previous prime is 61228576327. The next prime is 61228576363. The reversal of 61228576331 is 13367582216.

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

It is not a de Polignac number, because 61228576331 - 2² = 61228576327 is a prime.

It is a super-2 number, since 2×61228576331² (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 (61228570331) 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, 123944240 + ... + 123944733.

It is an arithmetic number, because the mean of its divisors is an integer number (8676114090).

Almost surely, 2^61228576331 is an apocalyptic number.

61228576331 is a deficient number, since it is larger than the sum of its proper divisors (8180336389).

61228576331 is a wasteful number, since it uses less digits than its factorization.

61228576331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247889005.

The product of its digits is 362880, while the sum is 44.

The spelling of 61228576331 in words is "sixty-one billion, two hundred twenty-eight million, five hundred seventy-six thousand, three hundred thirty-one".