48717991389 has 8 divisors (see below), whose sum is σ = 64958676160. Its totient is φ = 32477983776.

The previous prime is 48717991381. The next prime is 48717991411. The reversal of 48717991389 is 98319971784.

It is a happy number.

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

It is not a de Polignac number, because 48717991389 - 2³ = 48717991381 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 (48717991381) 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, 33177 + ... + 313905.

It is an arithmetic number, because the mean of its divisors is an integer number (8119834520).

Almost surely, 2^48717991389 is an apocalyptic number.

It is an amenable number.

48717991389 is a deficient number, since it is larger than the sum of its proper divisors (16240684771).

48717991389 is a wasteful number, since it uses less digits than its factorization.

48717991389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338579.

The product of its digits is 27433728, while the sum is 66.

The spelling of 48717991389 in words is "forty-eight billion, seven hundred seventeen million, nine hundred ninety-one thousand, three hundred eighty-nine".