61964041143 has 8 divisors (see below), whose sum is σ = 82627718256. Its totient is φ = 41304862400.

The previous prime is 61964041079. The next prime is 61964041151. The reversal of 61964041143 is 34114046916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61964041143 - 2⁶ = 61964041079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61964021143) 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, 1092318 + ... + 1147643.

It is an arithmetic number, because the mean of its divisors is an integer number (10328464782).

Almost surely, 2^61964041143 is an apocalyptic number.

61964041143 is a deficient number, since it is larger than the sum of its proper divisors (20663677113).

61964041143 is a wasteful number, since it uses less digits than its factorization.

61964041143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249185.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 61964041143 in words is "sixty-one billion, nine hundred sixty-four million, forty-one thousand, one hundred forty-three".