64049554039 has 4 divisors (see below), whose sum is σ = 64050069880. Its totient is φ = 64049038200.

The previous prime is 64049554007. The next prime is 64049554067. The reversal of 64049554039 is 93045594046.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64049554039 - 2⁵ = 64049554007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64049553983 and 64049554001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64049554099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54364 + ... + 362014.

It is an arithmetic number, because the mean of its divisors is an integer number (16012517470).

Almost surely, 2^64049554039 is an apocalyptic number.

64049554039 is a deficient number, since it is larger than the sum of its proper divisors (515841).

64049554039 is a wasteful number, since it uses less digits than its factorization.

64049554039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515840.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 64049554039 in words is "sixty-four billion, forty-nine million, five hundred fifty-four thousand, thirty-nine".