61446993212 has 12 divisors (see below), whose sum is σ = 117307896216. Its totient is φ = 27930451440.

The previous prime is 61446993203. The next prime is 61446993277. The reversal of 61446993212 is 21239964416.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698261243 + ... + 698261330.

It is an arithmetic number, because the mean of its divisors is an integer number (9775658018).

Almost surely, 2^61446993212 is an apocalyptic number.

It is an amenable number.

61446993212 is a deficient number, since it is larger than the sum of its proper divisors (55860903004).

61446993212 is a wasteful number, since it uses less digits than its factorization.

61446993212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396522588 (or 1396522586 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The spelling of 61446993212 in words is "sixty-one billion, four hundred forty-six million, nine hundred ninety-three thousand, two hundred twelve".