61917433343 has 4 divisors (see below), whose sum is σ = 62002602480. Its totient is φ = 61832264208.

The previous prime is 61917433309. The next prime is 61917433349. The reversal of 61917433343 is 34333471916.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61917433343 - 2⁸ = 61917433087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61917433294 and 61917433303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61917433349) 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, 42583478 + ... + 42584931.

It is an arithmetic number, because the mean of its divisors is an integer number (15500650620).

Almost surely, 2^61917433343 is an apocalyptic number.

61917433343 is a deficient number, since it is larger than the sum of its proper divisors (85169137).

61917433343 is an equidigital number, since it uses as much as digits as its factorization.

61917433343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85169136.

The product of its digits is 489888, while the sum is 44.

The spelling of 61917433343 in words is "sixty-one billion, nine hundred seventeen million, four hundred thirty-three thousand, three hundred forty-three".