78898841837 has 8 divisors (see below), whose sum is σ = 83073987360. Its totient is φ = 74725953840.

The previous prime is 78898841809. The next prime is 78898841839. The reversal of 78898841837 is 73814889887.

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 78898841837 - 2¹² = 78898837741 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 (78898841839) 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, 492398 + ... + 632655.

It is an arithmetic number, because the mean of its divisors is an integer number (10384248420).

Almost surely, 2^78898841837 is an apocalyptic number.

It is an amenable number.

78898841837 is a deficient number, since it is larger than the sum of its proper divisors (4175145523).

78898841837 is a wasteful number, since it uses less digits than its factorization.

78898841837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128763.

The product of its digits is 173408256, while the sum is 71.

The spelling of 78898841837 in words is "seventy-eight billion, eight hundred ninety-eight million, eight hundred forty-one thousand, eight hundred thirty-seven".