73839392849 has 8 divisors (see below), whose sum is σ = 78199298280. Its totient is φ = 69481310976.

The previous prime is 73839392821. The next prime is 73839392857. The reversal of 73839392849 is 94829393837.

It can be written as a sum of positive squares in 4 ways, for example, as 1113025 + 73838279824 = 1055^2 + 271732^2 .

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 73839392849 - 2¹⁶ = 73839327313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73839398849) 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, 372074 + ... + 534899.

It is an arithmetic number, because the mean of its divisors is an integer number (9774912285).

Almost surely, 2^73839392849 is an apocalyptic number.

It is an amenable number.

73839392849 is a deficient number, since it is larger than the sum of its proper divisors (4359905431).

73839392849 is a wasteful number, since it uses less digits than its factorization.

73839392849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911779.

The product of its digits is 70543872, while the sum is 65.

The spelling of 73839392849 in words is "seventy-three billion, eight hundred thirty-nine million, three hundred ninety-two thousand, eight hundred forty-nine".