61813822367 has 8 divisors (see below), whose sum is σ = 67583451600. Its totient is φ = 56069224960.

The previous prime is 61813822351. The next prime is 61813822381. The reversal of 61813822367 is 76322831816.

61813822367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61813822367 - 2⁴ = 61813822351 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 (61813822327) 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, 6252788 + ... + 6262665.

It is an arithmetic number, because the mean of its divisors is an integer number (8447931450).

Almost surely, 2^61813822367 is an apocalyptic number.

61813822367 is a deficient number, since it is larger than the sum of its proper divisors (5769629233).

61813822367 is a wasteful number, since it uses less digits than its factorization.

61813822367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12515913.

The product of its digits is 580608, while the sum is 47.

The spelling of 61813822367 in words is "sixty-one billion, eight hundred thirteen million, eight hundred twenty-two thousand, three hundred sixty-seven".