42745652819 has 8 divisors (see below), whose sum is σ = 45140110080. Its totient is φ = 40365664200.

The previous prime is 42745652813. The next prime is 42745652843. The reversal of 42745652819 is 91825654724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42745652819 is a prime.

It is a super-2 number, since 2×42745652819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42745652813) 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, 3611087 + ... + 3622904.

It is an arithmetic number, because the mean of its divisors is an integer number (5642513760).

Almost surely, 2^42745652819 is an apocalyptic number.

42745652819 is a deficient number, since it is larger than the sum of its proper divisors (2394457261).

42745652819 is a wasteful number, since it uses less digits than its factorization.

42745652819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234321.

The product of its digits is 4838400, while the sum is 53.

The spelling of 42745652819 in words is "forty-two billion, seven hundred forty-five million, six hundred fifty-two thousand, eight hundred nineteen".