61444226002 has 4 divisors (see below), whose sum is σ = 92166339006. Its totient is φ = 30722113000.

The previous prime is 61444225991. The next prime is 61444226023. The reversal of 61444226002 is 20062244416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61217151241 + 227074761 = 247421^2 + 15069^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15361056499 + ... + 15361056502.

Almost surely, 2^61444226002 is an apocalyptic number.

61444226002 is a deficient number, since it is larger than the sum of its proper divisors (30722113004).

61444226002 is a wasteful number, since it uses less digits than its factorization.

61444226002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30722113003.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 61444226002 in words is "sixty-one billion, four hundred forty-four million, two hundred twenty-six thousand, two".