44640055454 has 4 divisors (see below), whose sum is σ = 66960083184. Its totient is φ = 22320027726.

The previous prime is 44640055451. The next prime is 44640055501. The reversal of 44640055454 is 45455004644.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×44640055454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44640055451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160013862 + ... + 11160013865.

It is an arithmetic number, because the mean of its divisors is an integer number (16740020796).

Almost surely, 2^44640055454 is an apocalyptic number.

44640055454 is a deficient number, since it is larger than the sum of its proper divisors (22320027730).

44640055454 is a wasteful number, since it uses less digits than its factorization.

44640055454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22320027729.

The product of its (nonzero) digits is 768000, while the sum is 41.

The spelling of 44640055454 in words is "forty-four billion, six hundred forty million, fifty-five thousand, four hundred fifty-four".