44473048639 has 4 divisors (see below), whose sum is σ = 44473470424. Its totient is φ = 44472626856.

The previous prime is 44473048621. The next prime is 44473048643. The reversal of 44473048639 is 93684037444.

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 a de Polignac number, because none of the positive numbers 2^k-44473048639 is a prime.

It is a super-3 number, since 3×44473048639³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44473049639) 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, 103129 + ... + 315565.

It is an arithmetic number, because the mean of its divisors is an integer number (11118367606).

Almost surely, 2^44473048639 is an apocalyptic number.

44473048639 is a deficient number, since it is larger than the sum of its proper divisors (421785).

44473048639 is a wasteful number, since it uses less digits than its factorization.

44473048639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421784.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 44473048639 in words is "forty-four billion, four hundred seventy-three million, forty-eight thousand, six hundred thirty-nine".