63854759139 has 8 divisors (see below), whose sum is σ = 85221626880. Its totient is φ = 42528865416.

The previous prime is 63854759123. The next prime is 63854759149. The reversal of 63854759139 is 93195745836.

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

It is not a de Polignac number, because 63854759139 - 2⁴ = 63854759123 is a prime.

It is a super-3 number, since 3×63854759139³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (63854759119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10239867 + ... + 10246100.

It is an arithmetic number, because the mean of its divisors is an integer number (10652703360).

Almost surely, 2^63854759139 is an apocalyptic number.

63854759139 is a deficient number, since it is larger than the sum of its proper divisors (21366867741).

63854759139 is a wasteful number, since it uses less digits than its factorization.

63854759139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20487009.

The product of its digits is 24494400, while the sum is 60.

The spelling of 63854759139 in words is "sixty-three billion, eight hundred fifty-four million, seven hundred fifty-nine thousand, one hundred thirty-nine".