61043723474986 has 16 divisors (see below), whose sum is σ = 104646993045120. Its totient is φ = 26161443288720.

The previous prime is 61043723474983. The next prime is 61043723475017. The reversal of 61043723474986 is 68947432734016.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61043723474983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10202446 + ... + 15039193.

It is an arithmetic number, because the mean of its divisors is an integer number (6540437065320).

Almost surely, 2^{61043723474986} is an apocalyptic number.

61043723474986 is a deficient number, since it is larger than the sum of its proper divisors (43603269570134).

61043723474986 is a wasteful number, since it uses less digits than its factorization.

61043723474986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25414389.

The product of its (nonzero) digits is 146313216, while the sum is 64.

The spelling of 61043723474986 in words is "sixty-one trillion, forty-three billion, seven hundred twenty-three million, four hundred seventy-four thousand, nine hundred eighty-six".