61143828483 has 4 divisors (see below), whose sum is σ = 81525104648. Its totient is φ = 40762552320.

The previous prime is 61143828479. The next prime is 61143828533. The reversal of 61143828483 is 38482834116.

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

It is not a de Polignac number, because 61143828483 - 2² = 61143828479 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61143828463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10190638078 + ... + 10190638083.

It is an arithmetic number, because the mean of its divisors is an integer number (20381276162).

Almost surely, 2^61143828483 is an apocalyptic number.

61143828483 is a deficient number, since it is larger than the sum of its proper divisors (20381276165).

61143828483 is a wasteful number, since it uses less digits than its factorization.

61143828483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381276164.

The product of its digits is 884736, while the sum is 48.

The spelling of 61143828483 in words is "sixty-one billion, one hundred forty-three million, eight hundred twenty-eight thousand, four hundred eighty-three".