61626969244 has 6 divisors (see below), whose sum is σ = 107847196184. Its totient is φ = 30813484620.

The previous prime is 61626969203. The next prime is 61626969259. The reversal of 61626969244 is 44296962616.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7703371152 + ... + 7703371159.

Almost surely, 2^61626969244 is an apocalyptic number.

It is an amenable number.

61626969244 is a deficient number, since it is larger than the sum of its proper divisors (46220226940).

61626969244 is a wasteful number, since it uses less digits than its factorization.

61626969244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15406742315 (or 15406742313 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 55.

The spelling of 61626969244 in words is "sixty-one billion, six hundred twenty-six million, nine hundred sixty-nine thousand, two hundred forty-four".