61443087292 has 12 divisors (see below), whose sum is σ = 111233175480. Its totient is φ = 29662180016.

The previous prime is 61443087289. The next prime is 61443087323. The reversal of 61443087292 is 29278034416.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264840778 + ... + 264841009.

It is an arithmetic number, because the mean of its divisors is an integer number (9269431290).

Almost surely, 2^61443087292 is an apocalyptic number.

It is an amenable number.

61443087292 is a deficient number, since it is larger than the sum of its proper divisors (49790088188).

61443087292 is a wasteful number, since it uses less digits than its factorization.

61443087292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529681820 (or 529681818 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 61443087292 in words is "sixty-one billion, four hundred forty-three million, eighty-seven thousand, two hundred ninety-two".