61822992943 has 4 divisors (see below), whose sum is σ = 61823491128. Its totient is φ = 61822494760.

The previous prime is 61822992911. The next prime is 61822992977. The reversal of 61822992943 is 34929922816.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61822992943 - 2⁵ = 61822992911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61822992443) 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, 102105 + ... + 366157.

It is an arithmetic number, because the mean of its divisors is an integer number (15455872782).

Almost surely, 2^61822992943 is an apocalyptic number.

61822992943 is a deficient number, since it is larger than the sum of its proper divisors (498185).

61822992943 is a wasteful number, since it uses less digits than its factorization.

61822992943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498184.

The product of its digits is 3359232, while the sum is 55.

The spelling of 61822992943 in words is "sixty-one billion, eight hundred twenty-two million, nine hundred ninety-two thousand, nine hundred forty-three".